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Structural characterization of novel ionic materials incorporating the bis(trifluoromethanesulfonyl)amide anion

journal contribution
posted on 01.05.2002, 00:00 authored by C Forsyth, D MacFarlane, J Golding, J Huang, J Sun, Maria ForsythMaria Forsyth
A range of low melting salts of the bis(trifluoromethanesulfonyl)amide (TFSA) anion with hindered organic cations (N-methyl-1-methylpyrrolinium, N,N-dimethylpyrrolidinium, N,N,N,-trimethylammonium, and N,N,N,N-tetrakis(n-propyl)ammonium) have been crystallized. Single-crystal X-ray diffraction data show these materials to consist of discrete ions with only weak C−H···O (or for Me3NH N−H···O) contacts between the constituent atoms of the cations and anions close to the limits of van der Waals separations. Consequently, the observed physical properties of these materials presumably result from the diffuse negative charge on the TFSA anion and inefficient packing of these large and irregularly shaped ions.

History

Journal

Chemistry of materials

Volume

14

Issue

5

Pagination

2103 - 2108

Publisher

American Chemical Society

Location

Washington, D.C.

ISSN

0897-4756

eISSN

1520-5002

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2002, American Chemical Society