具有多重互穿结构的配位聚合物[Co(bpe)_4(CNS)_2]n

Multi-interpenetrating Structure Complex [Co(bpe)_4(CNS)_2]n

采用1,2-二(4-吡啶)乙烯,硫氰酸铵和乙酸钴在水热条件下合成了配位聚合物[Co(bpe)4(CNS)2]n(bpe=1,2-二(4-吡啶)乙烯,CNS=硫氰酸根),并通过元素分析、X-射线单晶衍射等技术对其结构进行了表征。配合物属四方晶系,空间群为I4;晶体学参数:a=1.5897nm,b=1.5897 nm,c=1.5446 nm;β=90°,V=3.903nm3,Z=4,R1=0.0784,wR2=0.1908。晶体的基本构建基元包含一个钴(II)原子,四个1,2-二(4-吡啶)乙烯,两个无序的硫氰酸根,其中每个Co(Ⅱ)原子与四个1,2-二(4-吡啶)乙烯相连形成了具有菱形格子的[4,4]二维网,有趣的是,沿C轴加角为90°的的二维网又互穿构筑了2D→3D的配位聚合网络。

The 3D structure topological complex [ Co （bpe） 4 （ CNS ） 2 ] n （ bpe = 1,2 - Di （ 4 - pyridy） ethylene, CNS =NH4CNS） has been synthesized by the hydrothermal method, and its molecular and crystal structures were determined by single - crystal X - ray diffraction. The complex is tetragonal, with space group I4, α=1.5897nm,b=1.5897nm,C=1.5446nm;β=90°,V=3.903nm^3,Z=4,R1=0.1379,wR2=0.2397. In the complex, every Co（Ⅱ） atom is six -coordinated by six nitrogen atoms from four 1,2 -Di （4 -pyridy） ethylene and two CNS - groups, forming a octahedral coordination configuration. The Co （Ⅱ） atoms are bridged by the 1,2 - Di （4 - pyridy） ethylene groups, constructing a two -dimensional [ 4,4 ] reseau structure, these 2D layers into a 3 D structure interpenetrating complex.