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

被引：89

作者：

Forsyth, CM ^{[1
]}

MacFarlane, DR

Golding, JJ

Huang, J

Sun, J

Forsyth, M

机构：

[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

[2] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3800, Australia

来源：

CHEMISTRY OF MATERIALS | 2002年 / 14卷 / 05期

关键词：

D O I：

10.1021/cm0107777

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

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页码：2103 / 2108

页数：6

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