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3,3'-Dimethyl-1,1'-(butane-1,4-di-yl)diimidazolium bis-(tetra-fluoro-borate).

ABSTRACT: The title compound, C(12)H(20)N(4) (2+)·2BF(4) (-), was prepared by the anion exchange of a dibromide ionic liquid with sodium tetra-fluoro-borate. The asymmetric unit contains one half of the imidazolium cation, which lies about an inversion centre at the mid-point of the central C-C bond of the linking butyl chain. The two planar imidazole rings (r.m.s. deviation = 0.0013?Å) are strictly parallel and separated by 2.625?(7)?Å [vertical distance between the centroids of two imidazole rings], giving the mol-ecule a stepped appearance. In the crystal structure, inter-molecular C-H?F hydrogen bonds link the cations and anions, generating a three-dimensional network.

SUBMITTER: Geng H 

PROVIDER: S-EPMC2979393 | biostudies-literature | 2010 May

REPOSITORIES: biostudies-literature

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3,3'-Dimethyl-1,1'-(butane-1,4-di-yl)diimidazolium bis-(tetra-fluoro-borate).

Geng Hao H   Zhuang Ling-Hua LH   Zhang Jian J   Wang Guo-Wei GW   Yuan Ai-Lin AL  

Acta crystallographica. Section E, Structure reports online 20100508 Pt 6

The title compound, C(12)H(20)N(4) (2+)·2BF(4) (-), was prepared by the anion exchange of a dibromide ionic liquid with sodium tetra-fluoro-borate. The asymmetric unit contains one half of the imidazolium cation, which lies about an inversion centre at the mid-point of the central C-C bond of the linking butyl chain. The two planar imidazole rings (r.m.s. deviation = 0.0013 Å) are strictly parallel and separated by 2.625 (7) Å [vertical distance between the centroids of two imidazole rings], giv  ...[more]

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