Home
Resources
Publications
X-Ray Absorption Spectroscopy Investigation of 1-alkyl-3-methylimidazolium Bromide Salts

X-Ray Absorption Spectroscopy Investigation of 1-alkyl-3-methylimidazolium Bromide Salts

Paola D'Angelo, Andrea Zitolo, Valentina Migliorati, Enrico Bodo, Giuliana Aquilanti, Jean Louis Hazemann, Denis Testemale, Giordano Mancini, Ruggero Caminiti

J Chem Phys. 2011 Aug 21;135(7):074505.

PMID: 21861574

Abstract:

X-ray absorption spectroscopy (XAS) has been used to unveil the bromide ion local coordination structure in 1-alkyl-3-methylimidazolium bromide [C(n)mim]Br ionic liquids (ILs) with different alkyl chains. The XAS spectrum of 1-ethyl-3-methylimidazolium bromide has been found to be different from those of the other members of the series, from the butyl to the decyl derivatives, that have all identical XAS spectra. This result indicates that starting from 1-buthyl-3-methylimidazolium bromide the local molecular arrangement around the bromide anion is the same independently from the length of the alkyl chain, and that the imidazolium head groups in the liquid ILs with long alkyl chains assume locally the same orientation as in the [C(4)mim]Br crystal. With this study we show that the XAS technique is an effective direct tool for unveiling the local structural arrangements around selected atoms in ILs.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP65039089	1-Ethyl-3-methylimidazolium bromide		65039-08-9	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: