Xu Zhan-Lin, Kong Zhi-Guo, Sun Shu-Bo, Wang Xiu-Yan
College of Chemistry, Jilin Normal University, Siping 136000, People's Republic of China.
Acta Crystallogr C. 2009 Aug;65(Pt 8):m273-5. doi: 10.1107/S010827010902438X. Epub 2009 Jul 7.
The title cobalt(II) coordination polymer, poly[[diaquacobalt(II)]-mu4-3,3'-(p-phenylene)diacrylato], [Co(C12H8O4)(H2O)2]n, was obtained by reaction of Co(NO3)(2).6H2O and 3,3'-(p-phenylene)diacrylic acid (H2L) under hydrothermal conditions. Each Co(II) cation sits on a centre of inversion and is hexacoordinated by six O-atom donors in an octahedral geometry. The Co(II) centres are connected by four centrosymmetric L2- anions, resulting in a three-dimensional framework structure. The coordinated water molecules and carboxylate O atoms form hydrogen-bond interactions, stabilizing the structure of the three-dimensional framework. Topologically, the framework represents a rare example of the three-dimensional 4-connected CdSO4 network type. The metal cations and the organic ligand both show in-plane coordination with respect to the extended structure.
标题为钴（II）配位聚合物，聚[[二水合钴（II）]-μ4-3,3'-（对亚苯基）二丙烯酸酯]，[Co（C12H8O4）（H2O）2]n，是通过Co（NO3）(2).6H2O与3,3'-（对亚苯基）二丙烯酸（H2L）在水热条件下反应得到的。每个Co（II）阳离子位于一个对称中心上，并由六个O原子供体以八面体几何构型进行六配位。Co（II）中心通过四个中心对称的L2-阴离子相连，形成三维骨架结构。配位水分子和羧酸根O原子形成氢键相互作用，稳定了三维骨架的结构。从拓扑学角度看，该骨架是三维4-连接CdSO4网络类型的罕见例子。金属阳离子和有机配体相对于扩展结构均呈现面内配位。
