<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung 揭钧 Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">孙立人生平事迹 (Sun Li-jen, bits and bytes)</style></title><secondary-title><style face="normal" font="default" size="100%">自强不息　振我中华　——　清华学校时期留美军事学人资料选编 (History of students from Tsing Hua School, 1912-1928)　（刘伟华、揭钧　编）</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2017</style></year></dates><edition><style face="normal" font="default" size="100%">1</style></edition><publisher><style face="normal" font="default" size="100%">清华大学校史馆 (School History, Tsing \Hua University) </style></publisher><pub-location><style face="normal" font="default" size="100%">北京清华大学 (Tsing Hua University, Beijing)</style></pub-location><volume><style face="normal" font="default" size="100%">1</style></volume><pages><style face="normal" font="default" size="100%">86-100</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Peter Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Water</style></title><secondary-title><style face="normal" font="default" size="100%">Bakery Products Science and Technology, </style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><edition><style face="normal" font="default" size="100%">2</style></edition><publisher><style face="normal" font="default" size="100%">Chichester, West Sussex, UK ; Hoboken, NJ : Wiley Blackwell</style></publisher><volume><style face="normal" font="default" size="100%">1</style></volume><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Water Chemistry and Biochemistry</style></title><secondary-title><style face="normal" font="default" size="100%">Food Biochemistry and Food Processing</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><edition><style face="normal" font="default" size="100%">Second</style></edition><publisher><style face="normal" font="default" size="100%">Ames, Iowa : Wiley-Blackwell</style></publisher><volume><style face="normal" font="default" size="100%">1</style></volume><pages><style face="normal" font="default" size="100%">84-106</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>5</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fundamental Characteristics of Water</style></title><secondary-title><style face="normal" font="default" size="100%">Handbook of Food Science, Technology, and Engineering - 4 Volume Set</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year></dates><edition><style face="normal" font="default" size="100%">1st</style></edition><publisher><style face="normal" font="default" size="100%">Boca Raton : Taylor &amp; Francis </style></publisher><volume><style face="normal" font="default" size="100%">1</style></volume><pages><style face="normal" font="default" size="100%">12-1--12-17</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Water, a natural occurring and abundant substance that exists in solid, liquid, and gas forms on the planet Earth, has attracted the attention of artists, engineers, poets, writers, philosophers, environmentalists, scientists, and politicians. Every aspect of life involves water as food, as a medium in which to live, or as the essential ingredient of life. The food science aspects of water range from agriculture, aquaculture, biology, biochemistry, cookery, microbiology, nutrition, photosynthesis, power generation, to zoology. Even in the narrow sense of food technology, water is intimately involved in the production, washing, preparation, manufacture, cooling, drying, and hydration of food. Water is eaten, absorbed, transported, and utilized by cells. Facts and data about water are abundant and diverse. This chapter can only selectively present some fundamental characteristics of water molecules and their collective properties for readers when they ponder food science at the molecular level.
&lt;/p&gt;
</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>6</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">揭鈞</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">小兵之父：孫立人將軍側記</style></title></titles><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://book.douban.com/subject/6886878/</style></url></web-urls></urls><edition><style face="normal" font="default" size="100%">First</style></edition><publisher><style face="normal" font="default" size="100%">躍昇文化事業有限公司</style></publisher><pages><style face="normal" font="default" size="100%">479</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">F.-J. Wang</style></author><author><style face="normal" font="default" size="100%">S.-L. Wang</style></author><author><style face="normal" font="default" size="100%">C.H. Len</style></author><author><style face="normal" font="default" size="100%">C.-S. Chung</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Structure of chloro(3,7‐diazanonanediamide)nickel(II) perchlorate</style></title><secondary-title><style face="normal" font="default" size="100%">Acta Cryst.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1989</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1107/S0108270189001538</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">C45</style></volume><pages><style face="normal" font="default" size="100%">1076-1077</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Thomas C.W. Mak</style></author><author><style face="normal" font="default" size="100%">Khalid S. Jasim</style></author><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Structural and spectroscopic study of Mo4(.mu.3-S)4(.mu.-S2CN(C2H5)2)2(S2CN(C2H5)2)4, a compound containing a cubane-like cluster with six molybdenum-molybdenum bonds</style></title><secondary-title><style face="normal" font="default" size="100%">Inorg. Chem.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1985</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://pubs.acs.org/doi/10.1021/ic00204a035</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">1587-1591</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">10</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">C. Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Geometric units in hexagonal and rhombohedral space groups</style></title><secondary-title><style face="normal" font="default" size="100%">Acta Cryst. (1984). A40, 567-571</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1984</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1107/S0108767384001173</style></url></web-urls></urls><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Hexagonal space groups,&amp;nbsp;&lt;i&gt;i.e.&lt;/i&gt;&amp;nbsp;those with an&amp;nbsp;&lt;i&gt;hP&lt;/i&gt;&amp;nbsp;lattice, are classified from the geometric-unit viewpoint by considering hexagonal crystal structures as combinations and permutations of some basic hexagonal prisms. Geometric units are the Dirichlet domains of the Wyckoff positions with the highest point-group symmetry in the space group. In this classification, there are six types of hexagonal space groups. Type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;1 consists of two independent geometric units of the same symmetry per crystallographic cell; in type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;2, the two units are identical, but differently oriented. Type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3 has six independent geometric units, again of the same point-group symmetry, but the six units can be made up of three pairs, each consisting of two identical units, thus giving rise to type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;4. There are subclasses in types&amp;nbsp;&lt;i&gt;h&lt;/i&gt;l and&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3. Centers of geometric units in&amp;nbsp;&lt;i&gt;h&lt;/i&gt;l(&lt;i&gt;a&lt;/i&gt;) and&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3(&lt;i&gt;a&lt;/i&gt;) are uniquely defined by intersections of point-group symmetry elements, whereas those in&amp;nbsp;&lt;i&gt;h&lt;/i&gt;1(&lt;i&gt;b&lt;/i&gt;) and&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3(&lt;i&gt;b&lt;/i&gt;) are not because the space groups in these subtypes are hemimorphic. Therefore, the two units along the polar axis may be combined as one. Type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;5 consists of three units, each turned 120° from its neighbors owing to the screw axis 31, 32, 62 and 64. Similarly, type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;6 has six units due to screw axes 61 and 65, and adjacent units are 60° apart. Rhombohedral space groups show two types of patterns: type&amp;nbsp;&lt;i&gt;r&lt;/i&gt;1 has two independent, and type&amp;nbsp;&lt;i&gt;r&lt;/i&gt;2 two identical, units. The h.c.p. and related structures are used to demonstrate the application of geometric units to crystal-structure descriptions.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">C. Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Geometric units in hexagonal and rhombohedral space groups</style></title><secondary-title><style face="normal" font="default" size="100%">Acta Cryst. (1984). A40, 567-571</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1984</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Hexagonal space groups,&amp;nbsp;&lt;i&gt;i.e.&lt;/i&gt;&amp;nbsp;those with an&amp;nbsp;&lt;i&gt;hP&lt;/i&gt;&amp;nbsp;lattice, are classified from the geometric-unit viewpoint by considering hexagonal crystal structures as combinations and permutations of some basic hexagonal prisms. Geometric units are the Dirichlet domains of the Wyckoff positions with the highest point-group symmetry in the space group. In this classification, there are six types of hexagonal space groups. Type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;1 consists of two independent geometric units of the same symmetry per crystallographic cell; in type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;2, the two units are identical, but differently oriented. Type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3 has six independent geometric units, again of the same point-group symmetry, but the six units can be made up of three pairs, each consisting of two identical units, thus giving rise to type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;4. There are subclasses in types&amp;nbsp;&lt;i&gt;h&lt;/i&gt;l and&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3. Centers of geometric units in&amp;nbsp;&lt;i&gt;h&lt;/i&gt;l(&lt;i&gt;a&lt;/i&gt;) and&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3(&lt;i&gt;a&lt;/i&gt;) are uniquely defined by intersections of point-group symmetry elements, whereas those in&amp;nbsp;&lt;i&gt;h&lt;/i&gt;1(&lt;i&gt;b&lt;/i&gt;) and&amp;nbsp;&lt;i&gt;h&lt;/i&gt;3(&lt;i&gt;b&lt;/i&gt;) are not because the space groups in these subtypes are hemimorphic. Therefore, the two units along the polar axis may be combined as one. Type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;5 consists of three units, each turned 120° from its neighbors owing to the screw axis 31, 32, 62 and 64. Similarly, type&amp;nbsp;&lt;i&gt;h&lt;/i&gt;6 has six units due to screw axes 61 and 65, and adjacent units are 60° apart. Rhombohedral space groups show two types of patterns: type&amp;nbsp;&lt;i&gt;r&lt;/i&gt;1 has two independent, and type&amp;nbsp;&lt;i&gt;r&lt;/i&gt;2 two identical, units. The h.c.p. and related structures are used to demonstrate the application of geometric units to crystal-structure descriptions.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Thomas C.W. Mak</style></author><author><style face="normal" font="default" size="100%">Khalid S. Jasim</style></author><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Spectroscopic and structural studies of some bisdithiocarbamates and cyclic thiones</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1984</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v84-134</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">63</style></volume><pages><style face="normal" font="default" size="100%">808-813</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">4</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Sing Kwen Cheung</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crystal structure of N,N&amp;prime;-dimethyl-2-imidazolidinethione, a by-product from the reaction of Na&lt;sub&gt;2&lt;/sub&gt;(CH&lt;sub&gt;2&lt;/sub&gt;N(CH&lt;sub&gt;3&lt;/sub&gt;)CS&lt;sub&gt;2&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt; and HgCl&lt;sub&gt;2&lt;/sub&gt;</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1983</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v81-396</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">61</style></volume><pages><style face="normal" font="default" size="100%">211-213</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Ammonium dithiocarbamate, H&lt;sub&gt;2&lt;/sub&gt;NCS&lt;sub&gt;2&lt;/sub&gt;NH&lt;sub&gt;4&lt;/sub&gt;, decomposes easily but the anion forms a stable mercury(II) complex, the crystals of which are orthorhombic with&amp;nbsp;&lt;i&gt;a&lt;/i&gt; = 7.851(3),&amp;nbsp;&lt;i&gt;b&lt;/i&gt; = 17.565(7),&amp;nbsp;&lt;i&gt;c&lt;/i&gt; = 12.051(3) Å, and space group&amp;nbsp;&lt;i&gt;Pbca&lt;/i&gt;. The structure was solved by the Patterson method and refined by the full-matrix least-squares method to an&amp;nbsp;&lt;i&gt;R&lt;/i&gt;&amp;nbsp;of 0.038 for 781 reflections. The structure consists of layers of two-dimensional polymeric networks. The dimeric subunits in the layer containing two each of mutually connected Hg atoms and dithiocarbamates are further linked by other bridging dithiocarbamates forming a sheet-like structure. Each Hg atom bonds to four S atoms from four separate dithiocarbamates with Hg—S distances of 2.499(4), 2.508(4), 2.533(4), and 2.629(4) Å. The ir bands observed were: ν(NH&lt;sub&gt;2&lt;/sub&gt;), 3320, 3220, 3125; δ(NH&lt;sub&gt;2&lt;/sub&gt;), 1600; ν(C—N), 1395; ρ&lt;sub&gt;r&lt;/sub&gt;(NH&lt;sub&gt;2&lt;/sub&gt;), 1172; and v(C—S), 840 cm&lt;sup&gt;−1&lt;/sup&gt;. The mass spectrum of this polymeric compound gave peaks corresponding to Hg, S&lt;sub&gt;2&lt;/sub&gt;, CNH&lt;sub&gt;2&lt;/sub&gt;, HNCS, S, CS&lt;sub&gt;2&lt;/sub&gt;, S&lt;sub&gt;5&lt;/sub&gt;, S&lt;sub&gt;4&lt;/sub&gt;, S&lt;sub&gt;3&lt;/sub&gt;, and S&lt;sub&gt;8&lt;/sub&gt;&amp;nbsp;in the order of their intensities.</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Archimedean truncated octahedron. III. Crystal structures with geometric units of symmetry m3m</style></title><secondary-title><style face="normal" font="default" size="100%">Acta Cryst. (1982). A38, 346-349</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1982</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1107/S0567739482000722</style></url></web-urls></urls><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">All geometric units in crystal structures of space groups&amp;nbsp;&lt;i&gt;Im&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;and&amp;nbsp;&lt;i&gt;Pm&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;and two out of the three types in those of&amp;nbsp;&lt;i&gt;Fm&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;have&amp;nbsp;&lt;i&gt;m&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;symmetry, whereas the remaining one of&amp;nbsp;&lt;i&gt;Fm&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;possesses&amp;nbsp;&lt;img align=&quot;bottom&quot; alt=&quot;{\bar 4}&quot; height=&quot;13&quot; src=&quot;https://journals.iucr.org/a/issues/1982/03/00/a20652//teximages/a20652fi1.gif&quot; width=&quot;7&quot;&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;symmetry. Theoretically, a geometric unit of&amp;nbsp;&lt;i&gt;m&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;symmetry has atoms arranged as a collection of these possible polyhedra: octahedron, cube, cuboctahedron, truncated octahedron, truncated cube, small rhombicuboctahedron and rhombicuboctahedron. All these can be derived from truncations, sometimes repeated, of the pair of platonic solids, cube and octahedron, which possess&amp;nbsp;&lt;i&gt;m&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;symmetry. In reality, no known crystal structure has a geometric unit with a rhombicuboctahedron or a truncated cube. The close-packing requirement causes a complicated geometric unit to start (from the center) in one of the following ways: (i) a single atom followed by an octahedron, (ii) a single atom followed by a cube, (iii) an octahedron and (iv) a cube. The survey of structures indicates that polyhedra derived from an octahedron occur more frequently in real geometric units than those related to a cube.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Sing Kwen Cheung</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A crystallographic and spectroscopic study of mercury(II) dithiocarbamate</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1981</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v81-396</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">59</style></volume><pages><style face="normal" font="default" size="100%">2746-2749</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Ammonium dithiocarbamate, H&lt;sub&gt;2&lt;/sub&gt;NCS&lt;sub&gt;2&lt;/sub&gt;NH&lt;sub&gt;4&lt;/sub&gt;, decomposes easily but the anion forms a stable mercury(II) complex, the crystals of which are orthorhombic with&amp;nbsp;&lt;i&gt;a&lt;/i&gt; = 7.851(3),&amp;nbsp;&lt;i&gt;b&lt;/i&gt; = 17.565(7),&amp;nbsp;&lt;i&gt;c&lt;/i&gt; = 12.051(3) Å, and space group&amp;nbsp;&lt;i&gt;Pbca&lt;/i&gt;. The structure was solved by the Patterson method and refined by the full-matrix least-squares method to an&amp;nbsp;&lt;i&gt;R&lt;/i&gt;&amp;nbsp;of 0.038 for 781 reflections. The structure consists of layers of two-dimensional polymeric networks. The dimeric subunits in the layer containing two each of mutually connected Hg atoms and dithiocarbamates are further linked by other bridging dithiocarbamates forming a sheet-like structure. Each Hg atom bonds to four S atoms from four separate dithiocarbamates with Hg—S distances of 2.499(4), 2.508(4), 2.533(4), and 2.629(4) Å. The ir bands observed were: ν(NH&lt;sub&gt;2&lt;/sub&gt;), 3320, 3220, 3125; δ(NH&lt;sub&gt;2&lt;/sub&gt;), 1600; ν(C—N), 1395; ρ&lt;sub&gt;r&lt;/sub&gt;(NH&lt;sub&gt;2&lt;/sub&gt;), 1172; and v(C—S), 840 cm&lt;sup&gt;−1&lt;/sup&gt;. The mass spectrum of this polymeric compound gave peaks corresponding to Hg, S&lt;sub&gt;2&lt;/sub&gt;, CNH&lt;sub&gt;2&lt;/sub&gt;, HNCS, S, CS&lt;sub&gt;2&lt;/sub&gt;, S&lt;sub&gt;5&lt;/sub&gt;, S&lt;sub&gt;4&lt;/sub&gt;, S&lt;sub&gt;3&lt;/sub&gt;, and S&lt;sub&gt;8&lt;/sub&gt;&amp;nbsp;in the order of their intensities.</style></abstract><issue><style face="normal" font="default" size="100%">18</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Langford Book</style></author><author><style face="normal" font="default" size="100%">Arthur J. Carty</style></author><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Five-coordinated halogenomercurate(II) complexes: crystal structures of bis(L-tryptophanium) trichloromercurate(II) and bis(D,L-homocysteine thiolactonium) tetrabromomercurate(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1981</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v81-022</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">59</style></volume><pages><style face="normal" font="default" size="100%">138-143</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Langford Book</style></author><author><style face="normal" font="default" size="100%">Arthur J. Carty</style></author><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">N,O- and S,O-bonded Hg(II) complexes with S-substituted amino acids: synthesis and crystal structures of bis(S-methyl-L-cysteinato)mercury(II) and bis(D,L-ethioninato)-mercury(II) diperchlorate</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1981</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v81-023</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">59</style></volume><pages><style face="normal" font="default" size="100%">144-150</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Archimedean truncated octahedron. II. Crystal structures with geometric units of symmetry 43m</style></title><secondary-title><style face="normal" font="default" size="100%">Acta Cryst. (1980). A36, 819-826</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1980</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://scripts.iucr.org/cgi-bin/paper?S0567739480001635</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">A36</style></volume><pages><style face="normal" font="default" size="100%">819-826</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">All geometric units in crystal structures of space groups&amp;nbsp;&lt;i&gt;P&lt;/i&gt;&lt;img align=&quot;bottom&quot; alt=&quot;{\bar 4}&quot; height=&quot;13&quot; src=&quot;https://journals.iucr.org/a/issues/1980/05/00/a18440//teximages/a18440fi1.gif&quot; width=&quot;7&quot;&gt;3&lt;i&gt;m&lt;/i&gt;,&amp;nbsp;&lt;i&gt;I&lt;/i&gt;&lt;img align=&quot;bottom&quot; alt=&quot;{\bar 4}&quot; height=&quot;13&quot; src=&quot;https://journals.iucr.org/a/issues/1980/05/00/a18440//teximages/a18440fi1.gif&quot; width=&quot;7&quot;&gt;3&lt;i&gt;m&lt;/i&gt;,&amp;nbsp;&lt;i&gt;Pn&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;,&amp;nbsp;&lt;i&gt;F&lt;/i&gt;&lt;img align=&quot;bottom&quot; alt=&quot;{\bar 4}&quot; height=&quot;13&quot; src=&quot;https://journals.iucr.org/a/issues/1980/05/00/a18440//teximages/a18440fi1.gif&quot; width=&quot;7&quot;&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;and&amp;nbsp;&lt;i&gt;Fd&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;possess point group&amp;nbsp;&lt;img align=&quot;bottom&quot; alt=&quot;{\bar 4}&quot; height=&quot;13&quot; src=&quot;https://journals.iucr.org/a/issues/1980/05/00/a18440//teximages/a18440fi1.gif&quot; width=&quot;7&quot;&gt;3&lt;i&gt;m&lt;/i&gt;. These units may be vacant, or may contain one or more atoms. In units containing more atoms than one, the atoms form one or a collection of these polyhedra: tetrahedron, truncated tetrahedron, octahedron, cuboctahedron or truncated octahedron; the last two may be distorted. Therefore, a formula that lists the consecutive polyhedra starting from the center of the unit can be used for the tabulation of these crystal structures. Only structures of Cu&lt;sub&gt;2&lt;/sub&gt;O type are known in&amp;nbsp;&lt;i&gt;Pn&lt;/i&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;and typical structures of the other four space groups are tabulated.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Anthony Anderson</style></author><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Donald Irish</style></author><author><style face="normal" font="default" size="100%">James P.K. Tong</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">An X-ray crystallographic, Raman, and infrared spectral study of crystalline potassium uranyl carbonate, K&lt;sub&gt;4&lt;/sub&gt;UO&lt;sub&gt;2&lt;/sub&gt;(CO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;3&lt;/sub&gt;</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1980</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v80-264</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">58</style></volume><pages><style face="normal" font="default" size="100%">1651-1658</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">16</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">C. Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Archimedean truncated octahedron, and packing of geometric units in cubic crystal structures</style></title><secondary-title><style face="normal" font="default" size="100%">Acta Cryst.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1979</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1107/S0567739479002114</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">A35</style></volume><pages><style face="normal" font="default" size="100%">946-952</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Any cubic crystal structure can be divided into small units in the form of congruent semi-regular (Archimedean) truncated octahedra. The centers of these polyhedra can be chosen at invariant equivalent positions for most cubic space groups. The part of a crystal structure enclosed by an Archimedean polyhedron is called a geometric unit (or unit for short); however, the boundary of the unit may be relaxed to include a whole molecule or ion in case the geometric division is not convenient. Based on the properties and arrangements of such geometric units, there is an interesting relationship among the 36 cubic space groups. All units in a crystal structure of any one of 16 space groups are equivalent. There are 14 space groups to accommodate crystal structures with two types of independent units. Only crystal structures of space groups&amp;nbsp;&lt;i&gt;F&lt;/i&gt;23 and&amp;nbsp;&lt;i&gt;F&lt;/i&gt;&lt;img align=&quot;bottom&quot; alt=&quot;{\bar 4}&quot; height=&quot;13&quot; src=&quot;https://journals.iucr.org/a/issues/1979/06/00/a17122//teximages/a17122fi1.gif&quot; width=&quot;7&quot;&gt;3&lt;i&gt;m&lt;/i&gt;&amp;nbsp;consist of four types of independent units. The remaining four space groups are in the class with three types of geometric units. The arrangement of geometric units is represented by a sequence of one period along the body diagonals of a unit cell. The sequence of geometric units is a simple version of the packing map on a (110) plane. This packing map reveals structural features.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Yau Shing Wong</style></author><author><style face="normal" font="default" size="100%">Peter C. Chieh</style></author><author><style face="normal" font="default" size="100%">Arthur J. Carty</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Interaction of Organomercury Pollutants with Biologically Important Sites: An X-ray study of the 2:1 Complex between Methylmercury and Penicillamine</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1979</style></year></dates><volume><style face="normal" font="default" size="100%">51</style></volume><pages><style face="normal" font="default" size="100%">2597-2599</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">15</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crystal structure of dibromotetraethylthiuramdisulfidemercury(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1978</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v78-163</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">56</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">7</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crystal structure of methyl,2-mercaptopyrimidinatomercury(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1978</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v78-090</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">56</style></volume><pages><style face="normal" font="default" size="100%">560-563</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">4</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Laura P.C. Lee</style></author><author><style face="normal" font="default" size="100%">Cecilia Chiu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Thiosemicarbazide complexes of mercury (II) halides</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1978</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v78-414</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">56</style></volume><pages><style face="normal" font="default" size="100%">2526-2529</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Dibromobis(thiosemicarbazide)mercury(II), HgBr&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;, is isostructural with dichlorobis-(thiosemicarbazide)mercury(II). The crystal is orthorhombic with&amp;nbsp;&lt;i&gt;a&lt;/i&gt; = 8.825(9),&amp;nbsp;&lt;i&gt;b&lt;/i&gt; = 8.587(11),&amp;nbsp;&lt;i&gt;c&lt;/i&gt; = 15.939(22) Å,&amp;nbsp;&lt;i&gt;Z&lt;/i&gt; = 4, space group&amp;nbsp;&lt;i&gt;Pbcn&lt;/i&gt;. Some bond lengths and angles are: Hg—Br = 2.860(4) Å, Hg—S = 2.45(1) Å, C—S = 1.76(4) Å and&amp;nbsp;&lt;img alt=&quot;&quot; src=&quot;http://www.nrcresearchpress.com/na101/home/literatum/publisher/nrc/journals/content/cjc/1978/cjc5619/v78-414/production/images/medium/v78-414c1.gif&quot;&gt;. In both HgCl&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;&amp;nbsp;and HgBr&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;, the configuration of the coordinated thiosemicarbazide (tsc) is the same as that of the free molecule. The ir and Raman (R) spectra for the complexes and tsc in the region 300–1600 cm&lt;sup&gt;−1&lt;/sup&gt;&amp;nbsp;are very similar. The strong band at 800 (807 R) cm&lt;sup&gt;−1&lt;/sup&gt;&amp;nbsp;in the tsc due to v(C—S) is shifted to 773 (796 R), 777 (796 R), and 660 (680 R) cm&lt;sup&gt;−1&lt;/sup&gt;&amp;nbsp;for HgCl&lt;sub&gt;2&lt;/sub&gt;&lt;sup&gt;−&lt;/sup&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;, HgBr&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;, and HgCl&lt;sub&gt;2&lt;/sub&gt;(tsc) correspondingly. A strong band at 368 (R) cm&lt;sup&gt;−1&lt;/sup&gt;&amp;nbsp;present uniquely for HgCl&lt;sub&gt;2&lt;/sub&gt;(tsc) can be assigned to v(Hg—N), The halides in HgX&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;&amp;nbsp;are bonded to one mercury(II) ion and weakly bridged to a neighboring molecule with Hg … Cl = 3.250(3) Å and Hg…Br = 3.436(4) Å. As a result, two Raman bands due to Hg—X are expected. For HgCl&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;, the two Raman bands occur at 236 and 166 cm&lt;sup&gt;−1&lt;/sup&gt;, whereas for HgBr&lt;sub&gt;2&lt;/sub&gt;(tsc)&lt;sub&gt;2&lt;/sub&gt;, one was observed at 190 cm&lt;sup&gt;−1&lt;/sup&gt;&amp;nbsp;but the other was masked by lattice modes. In HgCl&lt;sub&gt;2&lt;/sub&gt;(tsc), the two Hg—Cl bonds are different and bands at 220 and 190 cm&lt;sup&gt;−1&lt;/sup&gt;&amp;nbsp;are assigned to v(Hg—Cl)&lt;sub&gt;t&lt;/sub&gt;.</style></abstract><issue><style face="normal" font="default" size="100%">19</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rolf Stokhuyzen</style></author><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">William B. Pearson</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crystal structure of Sb&lt;sub&gt;2&lt;/sub&gt;Tl&lt;sub&gt;7&lt;/sub&gt;</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1977</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v77-157</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">1120-1122</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">7</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and crystal structure of diiodotetraethylthiuramdisulfidemercury(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1977</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v77-156</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">1115-1119</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">7</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Dianna H. Cowell</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and crystal structure of thiosemicarbazidedichloromercury(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1977</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v77-552</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">3898-3900</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Thiosemicarbazidedichloromercury(II) was synthesized in an ethanol–water solution by keeping the molar ratio of HgCl&lt;sub&gt;2&lt;/sub&gt;&amp;nbsp;and thiosemicarbazide (tsc) at 1:1. The crystal is monoclinic:&amp;nbsp;&lt;i&gt;a&lt;/i&gt; = 8.966(11),&amp;nbsp;&lt;i&gt;b&lt;/i&gt; = 6.817(9),&amp;nbsp;&lt;i&gt;c&lt;/i&gt; = 12.092(14) Å, β = 100.3(1)°, and space group&amp;nbsp;&lt;i&gt;P&lt;/i&gt;2&lt;sub&gt;1&lt;/sub&gt;/&lt;i&gt;c&lt;/i&gt;&amp;nbsp;with four molecules per unit cell. The tsc is a bidentate ligand in this complex with Hg—S = 2.417(6) Å, Hg—N = 2.51(2) Å. The mercury atom is trigonal pyramidally four-coordinated, with two Hg—Cl distances of 2.366(6) and 2.770(5) Å. When the tsc is coordinated to the mercury(II) ions, the chemical shift of the&amp;nbsp;&lt;sup&gt;1&lt;/sup&gt;H atoms on the NH&lt;sub&gt;2&lt;/sub&gt;&amp;nbsp;and NH groups shift to a lower field.</style></abstract><issue><style face="normal" font="default" size="100%">22</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and structure of dichlorobis(thiosemicarbazide)mercury(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1977</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v77-220</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">1583-1587</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">9</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A three-coordinate complex of mercury: crystal structure of bis(iodo-N,N-diethyldithiocarbamatomercury(II))</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1977</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v77-011</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">55</style></volume><pages><style face="normal" font="default" size="100%">65-69</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">1</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Laura P. C. Leung</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crystal structure and vibrational spectra of methyl N,N-diethyldithiocarbamato mercury(II)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1976</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v76-438</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">54</style></volume><pages><style face="normal" font="default" size="100%">3077-3984</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">19</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chung Chieh</style></author><author><style face="normal" font="default" size="100%">Gerald E. Toogood</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Structure of (NO)&lt;sub&gt;2&lt;/sub&gt;[Ho(NO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;5&lt;/sub&gt;], A 10-Coordinate Species</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Chemistry</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1975</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1139/v75-116</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">53</style></volume><pages><style face="normal" font="default" size="100%">831-835</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Nitrosonium pentanitratoholmate(III), (NO)&lt;sub&gt;2&lt;/sub&gt;Ho(NO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;5&lt;/sub&gt;, was prepared from holmium metal and dinitrogen tetroxide in anhydrous ethyl acetate. Its crystals are monoclinic with&amp;nbsp;&lt;i&gt;a&lt;/i&gt; = 8.094,&amp;nbsp;&lt;i&gt;b&lt;/i&gt; = 11.979, c = 14.170 Å and β = 104.7°,&lt;i&gt;Z&lt;/i&gt;&amp;nbsp;= 4, space group&amp;nbsp;&lt;i&gt;P&lt;/i&gt;2&lt;sub&gt;1&lt;/sub&gt;/&lt;i&gt;c&lt;/i&gt;. The structure was solved by the heavy-atom method and refined by full matrix least-squares methods to an&amp;nbsp;&lt;i&gt;R&lt;/i&gt;&amp;nbsp;value of 0.085 for 1514 observed reflections measured on the G.E. XRD-6 diffractometer. The structure consists of one Ho(NO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;5&lt;/sub&gt;&lt;sup&gt;2−&lt;/sup&gt;&amp;nbsp;and two NO&lt;sup&gt;+&lt;/sup&gt;&amp;nbsp;ions. The holmium is 10-coordinated by five essentially symmetric bidentate nitrate groups which arrange themselves in a trigonal bipyramidal fashion around the metal with a mean Ho—O distance of 2.45 Å. The two NO&lt;sup&gt;+&lt;/sup&gt;&amp;nbsp;ions per metal occupy slightly different environments and give rise to two i.r. bands at 2250 and 2285 cm&lt;sup&gt;−1&lt;/sup&gt;, attributable to the (N, O&lt;sup&gt;+&lt;/sup&gt;) stretching vibration. The mean N—O distance within these ions is 1.00 Å.</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue></record></records></xml>