Speciation of Chlorometallate Ionic Liquids Based on Gallium(iii) and Indium(iii)

Christopher Hardacre; Richard W. Murphy; Kenneth R. Seddon; Geetha Srinivasan; Małgorzata Swadźba-Kwaśny

doi:10.1071/CH10014

RESEARCH ARTICLE

Speciation of Chlorometallate Ionic Liquids Based on Gallium(iii) and Indium(iii)

Christopher Hardacre ^A , Richard W. Murphy ^A , Kenneth R. Seddon ^A ^B , Geetha Srinivasan ^A and Małgorzata Swadźba-Kwaśny ^A

+ Author Affiliations

- Author Affiliations

^A QUILL Research Centre, The Queen’s University of Belfast, Belfast BT9 5AG, UK.

^B Corresponding author. Email: quill@qub.ac.uk

Australian Journal of Chemistry 63(5) 845-848 https://doi.org/10.1071/CH10014
Submitted: 9 January 2010 Accepted: 13 April 2010 Published: 21 May 2010

Abstract

A range of ionic liquids was prepared by mixing 1-alkyl-3-methylimidazolium chloride with gallium(iii) chloride or indium(iii) chloride in various ratios, producing both acidic and basic compositions. Their speciation was investigated using ⁷¹Ga NMR or ¹¹⁵In NMR spectroscopy, as well as extended X-ray absorption fine structure. Polynuclear Lewis acidic anions, [M_xCl_3x+1]^–, were found in chlorogallate(iii) ionic liquids, but not in chloroindate(iii) systems.

References

Speciation of Chlorometallate Ionic Liquids Based on Gallium(iii) and Indium(iii)

Abstract

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