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1,1',2,2'-Tetra-methyl-3,3'-(p-phenyl-enedimethyl-ene)diimidazol-1-ium bis-(hexa-fluoridophosphate).

ABSTRACT: The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2PF(6) (-), has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions (the methyl substituents are ordered). This imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 81.3?(8)° for one disorder component and 83.8?(8)° for the other; the two components are off-set by 2.7?(8)°]. The crystal is a non-merohedral twin with a twin component of 23%.

SUBMITTER: Puvaneswary S 

PROVIDER: S-EPMC2977199 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

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1,1',2,2'-Tetra-methyl-3,3'-(p-phenyl-enedimethyl-ene)diimidazol-1-ium bis-(hexa-fluoridophosphate).

Puvaneswary Subramaniam S   Alias Yatimah Y   Ng Seik Weng SW  

Acta crystallographica. Section E, Structure reports online 20090711 Pt 8

The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2PF(6) (-), has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions (the methyl substituents are ordered). This imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 81.3 (8)° for one disorder component and 83.8 (8)° for the other; the two components are off-set by 2.7 (8)°]. The crystal is a non-merohedral twin with a twin c  ...[more]

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