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以2-甲基吡嗪-5-羧酸铜单核配合物为配合物配体,合成了一个Cu-Er异核配合物Cu(2-mpac)_2Er_2(NO_3)_6(H_2O)_8·6H_2O(1)(2-mpac:2-甲基吡嗪-5-羧酸),并利用元素分析仪,红外光谱仪和单晶X-射线衍射仪对配合物(1)进行了物理化学性质表征。晶体学数据:三斜晶系,P-1空间群,a=0.835 10(10)nm,b=1.006 62(14)nm,c=1.240 14(15)nm,α=111.662(3)°,β=99.057(2)°,γ=100.472(2)°,V=92.35(2)nm,Z=1,μ=5.209 mm~(-1),F(000)=633,S=1.070,最终偏离因子为[I>2σ(I)]R_1=0.058 5,w R_2=0.163 2,对于全部数据R_1=0.067 8,w R_2=0.175 4。
A novel Cu-Er heteronuclear complex Cu (2-mpac) _2Er_2 (NO_3) _6 (H_2O) _8 · 6H_2O was synthesized by using 2-methylpyrazine-5-carboxylate mononuclear complex as ligand (1) (2-mpac: 2-methylpyrazine-5-carboxylic acid), and the complex (1) was characterized by means of elemental analysis, infrared spectroscopy and single crystal X-ray diffraction. Crystallographic data: triclinic, P = 1 space group, a = 0.835 10 (10) nm, b = 1.006 62 (14) nm, β = 99.057 (2) °, γ = 100.472 (2) °, V = 92.35 (2) nm, Z = 1, μ = 5.209 mm -1, F (000) = 633, S = 1.070 The deviation factor is [I> 2σ (I)] R_1 = 0.058 5 and w R_2 = 0.163 2, for all data R_1 = 0.067 8 and w R_2 = 0.175 4.