First observation of the matrix-isolated FTIR spectrum of vaporized ionic liquid: An example of EmimTFSI, 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide

被引：23

作者：

Akai, Nobuyuki ^{[1
]}

Kawai, Akio ^{[1
]}

Shibuya, Kazuhiko ^{[1
]}

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Chem, Meguro Ku, Tokyo 1528551, Japan

来源：

CHEMISTRY LETTERS | 2008年 / 37卷 / 03期

关键词：

D O I：

10.1246/cl.2008.256

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The FTIR spectrum of vaporized ionic liquid has been measured with a low-temperature rare-gas matrix-isolation technique for the first time. 1-Ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, EmimTFSI, was employed as thermally vaporizable ionic liquid. The matrix-isolated IR spectrum was found to be different from either the IR spectrum of neat ionic liquid or the theoretically simulated stable 1:1 ion-pair spectrum. This observation may suggest that the vaporized ionic liquid has a certain structure different from either the liquid phase or theoretically expected ion-pair form.

引用

页码：256 / 257

页数：2

共 17 条

[1] Vapourisation of ionic liquids [J].

Armstrong, James P. ;

Hurst, Christopher ;

Jones, Robert G. ;

Licence, Peter ;

Lovelock, Kevin R. J. ;

Satterley, Christopher J. ;

Villar-Garcia, Ignacio J. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (08) :982-990

[2] Neutral and charged 1-butyl-3-methylimidazolium triflate clusters:: Equilibrium concentration in the vapor phase and thermal properties of nanometric droplets [J].

Ballone, P. ;

Pinilla, C. ;

Kohanoff, J. ;

Del Popolo, M. G. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (18) :4938-4950

[3] Prediction of the vapor pressure and vaporization enthalpy of 1-n-alkyl-3-methylimidazolium-bis-(trifluoromethanesulfonyl) amide ionic liquids [J].

Diedenhofen, Michael ;

Klamt, Andreas ;

Marsh, Kenneth ;

Schaefer, Ansgar .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (33) :4653-4656

[4] The distillation and volatility of ionic liquids [J].

Earle, MJ ;

Esperança, JMSS ;

Gilea, MA ;

Lopes, JNC ;

Rebelo, LPN ;

Magee, JW ;

Seddon, KR ;

Widegren, JA .

NATURE, 2006, 439 (7078) :831-834

[5] The gaseous enthalpy of formation of the ionic liquid 1-butyl-3-methylimidazolium dicyanamide from combustion calorimetry, vapor pressure measurements, and ab initio calculations [J].

Emel'yanenko, Vladimir N. ;

Verevkin, Sergey P. ;

Heintz, Andreas .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (13) :3930-3937

[6]

FRISCH MJ, 2004, GUASSIAN 03 REVISION

[7] Calculating the enthalpy of vaporization for ionic liquid clusters [J].

Kelkar, Manish S. ;

Maginn, Edward J. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (32) :9424-9427

[8] Ion-pair formation in the ionic liquid 1-ethyl-3-methylimidazolium bis(triflyl)imide as a function of temperature and concentration [J].

Koeddermann, Thorsten ;

Wertz, Christiane ;

Heintz, Andreas ;

Ludwig, Ralf .

CHEMPHYSCHEM, 2006, 7 (09) :1944-1949

[9] The nature of ionic liquids in the gas phase [J].

Leal, Joao P. ;

Esperanca, Jose M. S. S. ;

Minas da Piedade, Manuel E. ;

Canongia Lopes, Jose N. ;

Rebelo, Luis P. N. ;

Seddon, Kenneth R. .

JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 111 (28) :6176-6182

[10] Do we understand the volatility of ionic liquids? [J].

Ludwig, Ralf ;

Kragl, Udo .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (35) :6582-6584

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