1,1′,2,2′-Tetramethyl-3,3′-(p-phenylenedimethylene)diimidazol-1-ium dibromide

The title imidazolium-based ionic-liquid salt, C18H24N42+·2Br−, has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound meth...

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Bibliographic Details
Main Authors: Subramaniam Puvaneswary, Yatimah Alias, Seik Weng Ng
Format: Article
Language:English
Published: International Union of Crystallography 2009-08-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536809026324
Description
Summary:The title imidazolium-based ionic-liquid salt, C18H24N42+·2Br−, has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound methyl substituents are ordered. The imidazole ring is approximately perpendicular to the six-membered phenylene ring [dihedral angle = 80.7 (5)° for the major disorder component and 89.8 (3)° for the other; the two components are off-set by 10.1 (6)°].
ISSN:1600-5368