链状聚[[八水双（μ(4)-苯-1,3,5-三羧酸根）三锌]四水合物]
catena-Poly[[octa-aqua-bis-(μ(4)-benzene-1,3,5-tricarboxyl-ato)trizinc] tetra-hydrate].
作者信息
Sun Lin, Qiu Tao Run, Deng Hong
机构信息
School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2011 May 1;67(Pt 5):m630-1. doi: 10.1107/S160053681101436X. Epub 2011 Apr 22.
In the title compound, {[Zn(3)(C(9)H(3)O(6))(2)(H(2)O)(8)]·4H(2)O}(n), there are two crystallographically independent Zn(II) ions. One presents a trigonal-bipyramidal coordination geometry defined by five O atoms [three from two carboxyl-ate groups of two benzene-1,3,5-tricarboxyl-ate (BTC) ligands and the other two deriving from three water mol-ecules], while the other lies on an inversion centre and exists in a slightly distorted octa-hedral coordination geometry defined by six O atoms (two from two carboxyl-ate groups of two BTC ligands and the others from four water mol-ecules). A three-dimensional framework is further strengthened via O-H⋯O hydrogen-bonding inter-actons.
在标题化合物{[Zn₃(C₉H₃O₆)₂(H₂O)₈]·4H₂O}ₙ中，存在两个晶体学独立的Zn(II)离子。一个呈现由五个O原子定义的三角双锥配位几何构型[三个来自两个苯-1,3,5-三羧酸根（BTC）配体的两个羧酸根基团，另外两个来自三个水分子]，而另一个位于对称中心，以由六个O原子定义的稍有扭曲的八面体配位几何构型存在（两个来自两个BTC配体的两个羧酸根基团，其他来自四个水分子）。通过O—H⋯O氢键相互作用进一步加强了三维骨架结构。
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