一个Anderson型多酸基钴配合物的原位合成、结构及电化学性能

An Anderson polyoxometalate-based cobalt complex:in situ synthesis,structure and electrochemical property

合成了一个基于Anderdon型多酸[CrMo6(OH)6O18)]4-的钴配合物,{Co2(H2O)2(HL2)2[CrMo6(OH)6O18)]}·4H2O.3,5-di-[1,2,4]triazol-1-yl-benzonitrile(L1)在反应过程中发生了水解,原位生成了3,5-di-[1,2,4]triazol-1-yl-benzoic acid(L2).配合物是一个2D层结构,主要是一个以[CrMo6(OH)6O18)]4-多酸和Co2+离子构成的2D网状结构为基础,配体HL2利用自己的两个三唑N原子,与层上的Co(II)原子共价配位,悬挂在这个层的上下两侧.电化学性能研究表明,多酸[CrMo6(OH)6O18)]4-的氧化还原性,在配合物的最后结构中仍然存在.

A cobalt complex based on Anderson type polyoxometalate[CrMo6(OH)6O18)]4-,{Co2(H2O)2(HL2)2[CrMo6(OH)6O18)]}·4H2O,has been synthesized,where the ligand 3,5-di-[1,2,4]triazol-1-yl-benzoic acid(L2)originated from the in situ hydrolysis of 3,5-di-[1,2,4]triazol-1-yl-benzonitrile(L1).The title complex has 2D layer structure,in which a 2D layer composed of[CrMo6(OH)6O18)]4-polyoxoanions and Co2+ions was involved,and HL2 ligands were suspended on both sides of such layer by the coordination bonds between N atoms of HL2 ligand and Co(II)atoms from layer.Meanwhile,the redox ability of[CrMo6(OH)6O18)]4-polyoxoanion can be still maintained in the final structure.