Issue 29, 2013
From the journal:

RSC Advances

Investigation of the intrinsic electric field of nonhydroxyl and hydroxyl ionic liquids by vibrational Stark effect spectroscopy†

Shiguo Zhang,a   Yan Zhanga  and  Youquan Deng*a  

* Corresponding authors

a Centre for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
E-mail: ydeng@licp.cas.cn
Fax: 86 09314968141
Tel: 86 09314968141

Abstract

Electric fields of ionic liquids (ILs) were investigated by vibrational Stark effect spectroscopy using ethyl thiocyanate as a probe molecule. It was found that the stretching vibration of C[triple bond, length as m-dash]N in nonhydroxyl ILs originates exclusively from the intrinsic electric fields, which are on average 3.0 MV cm−1 higher than those of molecular solvents. In contrast, in the case of hydroxyl functional ILs, hydrogen bonding as well as the electric field contribute to the IR shift of C[triple bond, length as m-dash]N.

Graphical abstract: Investigation of the intrinsic electric field of nonhydroxyl and hydroxyl ionic liquids by vibrational Stark effect spectroscopy

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Article information

DOI
https://doi.org/10.1039/C3RA41190G
Article type
Communication
Submitted
14 Mar 2013
Accepted
15 May 2013
First published
16 May 2013

RSC Adv., 2013,3, 11480-11484

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Investigation of the intrinsic electric field of nonhydroxyl and hydroxyl ionic liquids by vibrational Stark effect spectroscopy

S. Zhang, Y. Zhang and Y. Deng, RSC Adv., 2013, 3, 11480 DOI: 10.1039/C3RA41190G

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