Zhu Xiao-Hong, Cheng Xiao-Chun
Faculty of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):m1862. doi: 10.1107/S1600536811050318. Epub 2011 Nov 30.
In the title polymer, {[Co(C(14)H(10)N(2)O(4))(H(2)O)]·3.5H(2)O}(n), the Co(2+) ion is coordinated by three carboxyl-ate O atoms from two 5-[(pyridin-2-ylmeth-yl)amino]-isophthalate anions, two N atoms from a (pyridin-2-ylmeth-yl)amino group and an O atom from a water mol-ecule, furnishing a distorted CoO(4)N(2) octa-hedral geometry. Each anion acts as a μ(3)-bridge, linking cobalt ions into a two-dimensional layer parallel to (100). The asymmetric unit also contains three and a half solvent water mol-ecules, which could not be modeled. Therefore, the diffraction contribution of the solvent water mol-ecules was removed by the subroutine SQUEEZE in PLATON [Spek (2009). Acta Cryst. D65, 148-155]. The crystal structure is stabilized by O-H⋯O hydrogen bonds in which the coordinated water mol-ecule acts as donor and the carboxyl-ate O atoms as acceptors.
在标题聚合物{[Co(C₁₄H₁₀N₂O₄)(H₂O)]·3.5H₂O}ₙ中，Co²⁺离子由来自两个5-[(吡啶-2-基甲基)氨基]间苯二甲酸根阴离子的三个羧酸根O原子、来自一个(吡啶-2-基甲基)氨基的两个N原子以及来自一个水分子的一个O原子配位，形成一个扭曲的CoO₄N₂八面体几何构型。每个阴离子作为一个μ₃-桥，将钴离子连接成平行于(100)的二维层。不对称单元还包含三个半溶剂水分子，无法对其进行建模。因此，通过PLATON [Spek (2009). Acta Cryst. D65, 148 - 155]中的SQUEEZE子程序去除了溶剂水分子的衍射贡献。晶体结构通过O-H⋯O氢键得以稳定，其中配位水分子作为供体，羧酸根O原子作为受体。
