稀土与对硝基苯乙酸及2,2′-联吡啶三元配合物的合成、光谱表征  

The Synthesis,Spectral Characterization of the Ternary Complexes Containing Rare-earth,p-Nitrophenylacetie Acid and 2,2′-Bipyridine

作　　者：杨永丽[1] 聂峰梅[1] 朱惠菊[1] 邓玉恒[1] 宗瑞发[1] 

机构地区：[1]首都师范大学化学系,北京100037

出　　处：《首都师范大学学报（自然科学版）》2006年第6期40-42,共3页Journal of Capital Normal University：Natural Science Edition

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

摘　　要：本文以乙醇为溶剂合成了稀土元素(RE=Tb,Eu,Sm)与对硝基苯乙酸(HL)、2,2′-联吡啶(bipy)的三元固体配合物,通过元素分析等手段确定了稀土配合物的组成为REL3bipy.2H2O,用红外光谱、紫外光谱、热分析对该类配合物的结构与性质进行了表征,红外光谱表明配体以-COO-的形式与中心离子配位,同时这一点也被自由配体和配合物的UV谱所证实。The ternary solid rare-earth complexes were synthesized using paranitrobenzoic acid （HL）, 2,2＇-bipyridine （bipy） and rare-earthin in ethanol solvent. Their compositions were confirmed to be REL3 ·bipy·nH2O （n = 2,3; RE = Tb, Eu, Sin） by the element analysis. The structures and properties of the complexes were characterized by infrared and ultraviolet absorption spectra and DTA-TGA relatively. The IR spectra show the ligands coordinate to central ion in - COO- style. This was also verified by comparison of the UV spectra of the free ligand and the complexes.

关 键 词：2 2'-联吡啶 对硝基苯乙酸 稀土配合物 光谱表征 

分 类 号：O614.33[理学—无机化学]