How transparent are the imidazolium ionic liquids?: A case study with 1-methyl-3-butylimidazolium hexafluorophosphate, [bmim][PF6]

被引：232

作者：

Paul, A ^{[1
]}

Mandal, PK ^{[1
]}

Samanta, A ^{[1
]}

机构：

[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 402卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.12.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Imidazolium ionic liquids are generally regarded as optically transparent materials. Herein, we report on the optical behaviour of a typical imidazolium ionic liquid that not only suggests that [bmim][PF6] does have significant absorption in the UV region, but it also brings into light a very interesting fluorescence behaviour. The fluorescence peak position of [bmim][PF6] is found to be very strongly dependent on the excitation wavelength. The unusual fluorescence response of [bmim][PF6] is attributed to the presence of several energetically different associated forms of the imidazolium ions in the ionic liquid. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：375 / 379

页数：5

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