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双（2,6-二甲基吡啶鎓）四溴化锌（II）

Bis(2,6-dimethyl-pyridinium) tetra-bromido-zincate(II).

作者信息

Ali Basem Fares, Al-Far Rawhi

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 30;65(Pt 5):m581-2. doi: 10.1107/S1600536809015219.

DOI:10.1107/S1600536809015219
PMID:21583809
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2977623/
Abstract

In the crystal structure of the title compound, (C(7)H(10)N)(2)[ZnBr(4)], the coordination geometry of the anion is approximately tetra-hedral and a twofold rotation axis passes through the Zn atom. The Zn-Br bond lengths range from 2.400 (2) to 2.408 (3) Å and the Br-Zn-Br angles range from 108.14 (6) to 115.15 (15)°. In the crystal structure, the ZnBr(4) anion is connected to two cations through N-H⋯Br and H(2)C-H⋯Br hydrogen bonds, forming two-dimensional cation-anion-cation layers normal to the b axis. No significant Br⋯Br inter-actions [the shortest being 4.423 (4) Å] are observed in the structure.

摘要

在标题化合物（C₇H₁₀N）₂[ZnBr₄]的晶体结构中，阴离子的配位几何形状近似为四面体，且一个二重旋转轴穿过锌原子。锌-溴键长范围为2.400（2）至2.408（3）Å，溴-锌-溴键角范围为108.14（6）至115.15（15）°。在晶体结构中，[ZnBr₄]²⁻阴离子通过N-H⋯Br和H₂C-H⋯Br氢键与两个阳离子相连，形成垂直于b轴的二维阳离子-阴离子-阳离子层。在该结构中未观察到明显的溴⋯溴相互作用[最短为4.423（4）Å]。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c388/2977623/e5d418101837/e-65-0m581-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c388/2977623/2f40492bdfb2/e-65-0m581-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c388/2977623/e5d418101837/e-65-0m581-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c388/2977623/2f40492bdfb2/e-65-0m581-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c388/2977623/e5d418101837/e-65-0m581-fig2.jpg

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