Ionic liquids as novel spectroscopic solvents for Eu(III)-containing complex 被引量：1

Ionic liquids as novel spectroscopic solvents for Eu(III)-containing complex

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摘要 Novel soft materials, Eu（Ⅲ）-containing complex dissolved in [C8mim][X] （X=Cl-, PF-6 and Tf2N） ionic liquids, were synthesized. FT-IR and elementary analysis of complex proved that the molecular formula is [Csmim] [Eu（TTA）4]. The complex and ionic liquids had high thermal stability according to TGA. The photoluminescence spectra showed that the [Csmim][Eu（TTA）4] exhibited typical red emission de- riving from 5Do-7F2 transition. After dissolving the complex in [Csmim][X] （X=C1, PF6- and Tf2N-） ionic liquids, the luminescence intensity decreased in the following order： [Csmim][Tf2N]=[Csmim][PF6 ]〉[Csmim][C1]. This was because Tf2N- and PF6 anions had larger molecular volume and weaker coordination ability than Cl. Novel soft materials, Eu（Ⅲ）-containing complex dissolved in [C8mim][X] （X=Cl-, PF-6 and Tf2N） ionic liquids, were synthesized. FT-IR and elementary analysis of complex proved that the molecular formula is [Csmim] [Eu（TTA）4]. The complex and ionic liquids had high thermal stability according to TGA. The photoluminescence spectra showed that the [Csmim][Eu（TTA）4] exhibited typical red emission de- riving from 5Do-7F2 transition. After dissolving the complex in [Csmim][X] （X=C1, PF6- and Tf2N-） ionic liquids, the luminescence intensity decreased in the following order： [Csmim][Tf2N]=[Csmim][PF6 ]〉[Csmim][C1]. This was because Tf2N- and PF6 anions had larger molecular volume and weaker coordination ability than Cl.

作者邓岳锋赵贺陈继李义民公发全韩新民刘万发

机构地区 Key Laboratory of Chemical Lasers State Key Laboratory of Rare Earth Resource Utilization

出处《Journal of Rare Earths》 SCIE EI CAS CSCD 2011年第10期915-919,共5页 稀土学报（英文版）

基金 supported by the National Key Technology R&D Program of China (2006BAC02A10) Scientific Research Foundation for the Returned Overseas Chinese Scholars Ministry of Education of China the Open Project Program of Key Laboratory of Chemical Lasers Dalian Institute of Chemical Physics Chinese Academy of Sciences

关键词 ionic liquids EUROPIUM LUMINESCENCE rare earths ionic liquids europium luminescence rare earths

分类号 O614.338 [理学—无机化学]

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