Studies of polyhalides .22. On dimethyldiphenylammoniumpolyiodides (Me(2)Ph(2)N)I-n with n=3,13/3,6, and 8: Preparation and crystal structures of a triiodide (Me(2)Ph(2)N)I-3, tridecaiodide (Me(2)Ph(2)N)(3)I-13, dodecaiodide (Me(2)Ph(2)N)(2)I-12, and hexadecaiodide (Me(2)Ph(2)N)(2)I-16

被引:31
作者
Tebbe, KF
Gilles, T
机构
[1] Institut für Anorganische Chemie, Universität, Köln
[2] Institut für Anorganische Chemie, Universität zu Köln, D-50939 Köln
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1996年 / 622卷 / 01期
关键词
polyiodides; triiodide; tridecaiodide; dodecaiodide; hexadecaiodide; crystal structures;
D O I
10.1002/zaac.19966220119
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The new compounds [(CH3)(2)(C6H5)(2)N]I-3, [(CH3)(2)(C6H5)(2)N]I-3(13), [(CH3)(2)(C6H5)(2)N]I-2(12) and [(CH3)(2)(C6H5)(2)N]I-2(16) have been prepared by the reaction of dimethyldiphenylammonium iodide [(CH3)(2)(C6H5)(2)N]I with iodine I-2 in ethanol. Their crystal structures have been determined by single crystal X-ray diffraction methods. The structure of the triiodide may be described as a layerlike packing of pairs of nearly linear symmetric anions and tetraedral cations. The tridecaiodide forms zig-zag chains of iodide ions and iodine molecules with the iodide ion also weakly coordinated by two pentaiodide groups. The dodecaiodide is built from two pentaiodide-groups, which are bridged by an iodine molecule and connected with secondary bonds forming double chains. The hexadecaiodide ion forms layers built up from two heptaiodide groups and one iodine molecule. Thus the dimethyldiphenylammonium cation stabilizes a unique series of polyiodides of extraordinary composition and structure.
引用
收藏
页码:138 / 148
页数:11
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