3-羧基甲氧基-2-萘甲酸钴配合物的水热合成、晶体结构和电化学研究

摘要

标题化合物[Co(L)(H2O)]n是由Co(OAc)2·4H2O、3-羧基甲氧基-2-萘甲酸(H2L)、NaOH经水热反应得到.采用元素分析、IR及X-射线衍射法表征了该配合物.晶体结构表明:晶体属于单斜晶系,空间群P21,Flack参数值为0.026(13).晶胞参数:α=0.505 87(7) nm.b=0.942 88(12) nm,c=1.23403(16)nm,β=95.015(9)°,V=0.586 35(13) nm3,Z=2,Mr=321.14,Dc=1.819 g.cm-3,μ=1.487mm-1,F(000)=326,Rint=0.0238,R1=0.0228,wR2=0.0532.配合物的中心钴离子是六配位稍变形的八面体结构,3-羧基甲氧基-2-萘甲酸将配合物桥联成二维层状结构.对配合物的电化学行为进行了研究.%The title complex,[Co(L)(H2O)]n,1,where H2L=3-(carboxymethoxy)-2-naphthoic acid,was synthesized through hydrothermal synthesis and its crystal structure was determined by X-ray diffraction analysis.The crystalis monoclinic,space group P21 with a=0.505 87(7) nm,b=0.942 88(12) nm,c=1.23403(16) nm,β=95.015(9),V= 0.586 35 (13) nm3,Z=2,Mr=321.14,Dc=1.819 g·cm-3,μ=1.487 mm-1,F (000)=326,Rint=0.023 8,R1=0.0228,wR2=O.053 2,and the Flack parameter is 0.026(13).In the complex,the cobalt atom is six-coordinated by six oxygen atoms,completing an octahedral geometry.The molecules are connected to form a 2D layer structure bridged by 3-(carboxymethoxy)-2-naphthoic acid.The cyclic voltammetric behavior of the complex was alsostudied.CCDC:826094.