稀土、2-羟基-3-萘甲酸、邻菲咯啉三元配合物合成及表征  

Synthesis and Spectral Characterization of Rare-Earth-3-Hydroxyl-2-Naphthalinate-Phenanthroline Compounds

作　　者：邓玉恒[1] 王少亭[1] 杨永丽[1] 聂峰梅[1] 

机构地区：[1]首都师范大学化学系,北京100037

出　　处：《光谱学与光谱分析》2006年第6期1138-1140,共3页Spectroscopy and Spectral Analysis

基　　金：北京市科技新星计划(H013610050112);北京市教委项目(2002KJ094)资助

摘　　要：在乙醇溶液中合成了稀土离子(RE=Tb,Eu,Sm,Nd)与2-羟基-3-萘甲酸(HL)、邻菲咯啉(phen)固体配合物。通过元素分析、红外光谱、紫外光谱、差热-热重分析,确定了配合物的组成为REL4.phen2.Na.H2O。初步研究了这些配合物的谱学性质并推测出羧基(—COO—)与稀土离子和钠离子属于桥式配位,形成了链状结构的化合物。其中钠离子和稀土离子分别为六配位和八配位模式。The solid rare-earth （RE=Tb, Eu, Sm, Nd） compounds with 3-hydroxyl-2-naphthalinic acid （L） and phenanthroline （phen） were synthesized in ethanol solution in the present work. Their compositions were determined to be REL4·phen2·Na·H2O by the element analysis, infrared and ultraviolet absorption spectra, and DTA-TGA, respectively. The spectral properties of the compounds were studied tentatively, and the coordination mode of carboxyl group was deduced to be bridged style to chelate the rare-earth and sodium ions to form an infinite chain structural complex. The sodium and rare-earth ions are six-coordinated and eight-coordinated geometry respectively.

关 键 词：稀土配合物 2-羟基-3-萘甲酸 邻菲咯啉 谱学性质 

分 类 号：O614.3[理学—无机化学]