通过氢键构筑的混合配体3D超分子及电化学性质

Three dimensional mixed ligand supramolecular and electrochemical property based on hydrogen bond

在水热条件下合成了配位聚合物[Co(H2O)6]·[Co(phen)2(H2O)2]2·(BTC)2.24·6H2O(phen=1,10-邻菲罗林,BTC=均苯三甲酸),并通过元素分析,IR光谱,TGA和单晶X射线衍射对其进行了表征.结构表明该化合物属于单斜晶系,空间点群P2(1)/c.晶体的不对称结构单元中包含1个均苯三甲酸离子和2个六配位的金属Co(Ⅱ)中心,分别位于八面体配位几何CoN4O2和CoO6中心,形成2个单核阳离子[Co(H2O)6]2+和[Co(phen)2(H2O)2]2+.氢键(O—H…O)将体系内独立的部分连接成具有三维结构的超分子.利用循环伏安法对其电化学行为进行了研究.

The complex [ Co（ 1-120）6]·[ Co （phen） 2 （ H2O）2 ]2· （BTC） 2· 24.6H2O （ H3 BTC = benzene-1,3,5-tricarboxylic acid, phen = 1,10-phenanthmline）was synthesized by the hydrothermal reaction and characterized by single crystal X-ray diffraction analysis, element analysis, TGA, and infrared spectrum. The result shows that the crystal structure belongs to monoclinic system, space group P2（ 1）/c. The asymmetrical structure unit of the crystal consists of one benzene-1, 3,5-tricarboxylic acid ion and two six-coordinational metal Co（ Ⅱ ） centers, which locate in octahedron MN2O4 and MO6, respectively forming two mononuclear cations [ Co （ H2O）6]^2＋ and [ Co （ Phen）2 （H2O）2]^2＋ .The three isolated structure are linked further by hydrogen bonds （O-H…O） to three dimensional supremolecular structure. The cyclic volatmmetric behavior of the complex was also investigated for the definition of the identity of the couple of redox peaks.