2-甲基-5-羧基吡嗪酸铜配合物的合成与结构

摘要

以2-甲基-5-羧基吡嗪(2-mpac)为配体,合成了一个铜的单核配合物Cu(2-mpac)2(H20)·3H20(1).并利用元素分析、IR、X-射线单晶衍射等手段对配合物(1)进行了结构及理化性质表征.晶体学数据:三斜晶系,P-1 空间群,a=0.8337(5)nm,b=1.0583(6)nm,c=1.1250(7)nm,α =64.399(11),β=85.352(13),Υ=68.436(12)°,V=0.8289(9)nm3,Z=2,S=0.801,最终残差因子[I＞2σ(I)]R1 =0.0666,wR2 =0.0569,对于全部数据R1=0.2142,wR2 =0.0682.%A mononuclear complex Cu(2-mpac)2( H2O) o 3H2O (1) with 2-rapac as ligand has been prepared from aqueous solution and characterized by elemental analysis,IR,and single crystal X-ray diffraction. Crystal data:triclinic,space group PA ,α =0.833 7(5)nm,b = 1.058 3(6) ran,c = 1.125 0(7)nm, α = 64. 399(11),β = 85.352(13),y =68.436(12)°, V=0. 828 9(9)nm3,Z =2,S =0.801,final R in dices [/>2σ-(I) ]R, =0.066 6,wR2 =0.056 9,for all reflections R1, =0.214 2,wR2 =0.0682.