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Issue 8, 2016
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Thermally stable bis(trifluoromethylsulfonyl)imide salts and their mixtures

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Abstract

We show that both tetraphenylphosphonium bis(trifluoromethylsulfonyl)imide ([PPh4][NTf2]) and Cs[NTf2] are low melting salts of exceptionally high and also very similar thermal stability. This similarity indicates that the thermal stability is dominated by the anion. Moreover, eutectic mixtures of [PPh4][NTf2] and Cs[NTf2] with melting points below 100 °C are presented. Surface analysis of the latter in the liquid state reveals a surprising depletion of [PPh4]+ ions from the surface.

Graphical abstract: Thermally stable bis(trifluoromethylsulfonyl)imide salts and their mixtures

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Article information


Submitted
22 Feb 2016
Accepted
13 Jun 2016
First published
14 Jun 2016

New J. Chem., 2016,40, 7157-7161
Article type
Paper
Author version available

Thermally stable bis(trifluoromethylsulfonyl)imide salts and their mixtures

M. Scheuermeyer, M. Kusche, F. Agel, P. Schreiber, F. Maier, H. Steinrück, J. H. Davis, F. Heym, A. Jess and P. Wasserscheid, New J. Chem., 2016, 40, 7157
DOI: 10.1039/C6NJ00579A

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