Structural Characterization of Novel Ionic Salts Incorporating Trihalide Anions

Pamela M. Dean; Bronya R. Clare; Vanessa Armel; Jennifer M. Pringle; Craig M. Forsyth; Maria Forsyth; Douglas R. MacFarlane

doi:10.1071/CH08456

RESEARCH FRONT

Structural Characterization of Novel Ionic Salts Incorporating Trihalide Anions

Pamela M. Dean ^A ^D , Bronya R. Clare ^A , Vanessa Armel ^B , Jennifer M. Pringle ^B ^C , Craig M. Forsyth ^A , Maria Forsyth ^B ^C and Douglas R. MacFarlane ^B

+ Author Affiliations

- Author Affiliations

^A School of Chemistry, Monash University, Wellington Road, Clayton, VIC 3800, Australia.

^B Department of Materials Engineering, Monash University, Wellington Road, Clayton, VIC 3800, Australia.

^C Australian Research Council Centre of Excellence in Electromaterials Science, Monash University, Wellington Road, Clayton, VIC 3800, Australia.

^D Corresponding author. Email: pamela.dean@sci.monash.edu.au

Australian Journal of Chemistry 62(4) 334-340 https://doi.org/10.1071/CH08456
Submitted: 23 October 2008 Accepted: 17 February 2009 Published: 24 April 2009

Abstract

The crystal structures of several low-melting salts containing trihalide ions, namely 1-ethyl-3-methylimidazolium tribromide ([C₂mim][Br₃]), 1-ethyl-1-methylpyrrolidinium tribromide ([C₂mpyr][Br₃]), and 1-propyl-1-methylpyrrolidinium triiodide ([C₃mpyr][I₃]), are reported for the first time. Thermal analysis reveals that the tribromide salts are lower-melting than their monohalide analogues. Analysis of the crystal structures allows examination of the influence of the anions on the physical properties of the salts.

Acknowledgements

P.M.D. is grateful to Monash University for the Monash Graduate Scholarship and Monash International Postgraduate Research Scholarship, J.M.P. and D.R.M. are grateful to the Australian Research Council for a QEII Fellowship and Federation Fellowship respectively.

References

Structural Characterization of Novel Ionic Salts Incorporating Trihalide Anions

Abstract

Acknowledgements

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