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用1-苯基-3-甲基-4-苯甲酸基-5-吡唑啉酮(HPMBP)溶液与硝酸镧溶液合成了镧的PMBP络合物-La(PMBP)_3·2H_2O,用X-射线法测定了该络合物的晶体结构和分子结构,晶体属于单斜晶系,c面心格子,C2/c空间群,a=2.4744(5)nm,b=1.6325(7)nm,c=2.5871(4)nm,β=105.44(2)°,V=10.0731nm~3,Z=8,Dc=1.330g·cm~(-3),μ=9.25cm~(-1)。络合物中心离子La(Ⅲ)处于由8个氧原子所构成的四方反棱柱体中心。La-O平均健长为0.2492nm。
Lanthanum PMBP complex-La (PMBP) _3 · 2H_2O was synthesized from 1-phenyl-3-methyl-4-benzoate-5-pyrazolone (HPMBP) solution and lanthanum nitrate solution. The crystal structure and molecular structure of the complex were determined by the radiometric method. The crystal belongs to the monoclinic system with a c-plane lattice, a = 2.4744 (5) nm and b = 1.6325 (7) nm. c = 2.5871 (4) nm, β = 105.44 (2) °, V = 10.0731 nm -3, Z = 8, Dc = 1.330 g · cm -3 and μ = 9.25 cm -1. The complex center ion La (Ⅲ) is at the center of a square antiprism composed of 8 oxygen atoms. La-O average health is 0.2492nm.