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1H,3H-Imidazolium (R,S)-camphor-10-sulfonate.

ABSTRACT: The title compound, C(3)H(5)N(2) (+)·C(10)H(15)O(4)S(-), comprises two crystallographically independent ion pairs (A and B) in the asymmetric unit with slightly different conformations due to the disordered methyl groups in the anion of molecule A. Two intra-molecular C-H?O hydrogen bonds generate S(6) ring motifs. In mol-ecule A, the methyl groups are disordered over two sets of positions with a site-ocuppancy ratio of 0.547?(9):0.453?(9). Extensive inter-molecular N-H?O and C-H?O hydrogen-bonding inter-actions occur in the crystal structure which link the mol-ecules into a two-dimensional network parallel to the (100) plane.

SUBMITTER: Abdul Rahman MB

PROVIDER: S-EPMC2968277 | biostudies-literature | 2009

REPOSITORIES: biostudies-literature

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1H,3H-Imidazolium (R,S)-camphor-10-sulfonate.

Abdul Rahman Mohd Basyaruddin MB Omar Emmy Maryati EM Ng Shie Ling SL Kia Reza R Fun Hoong-Kun HK

Acta crystallographica. Section E, Structure reports online 20090108 Pt 2

The title compound, C(3)H(5)N(2) (+)·C(10)H(15)O(4)S(-), comprises two crystallographically independent ion pairs (A and B) in the asymmetric unit with slightly different conformations due to the disordered methyl groups in the anion of molecule A. Two intra-molecular C-H⋯O hydrogen bonds generate S(6) ring motifs. In mol-ecule A, the methyl groups are disordered over two sets of positions with a site-ocuppancy ratio of 0.547 (9):0.453 (9). Extensive inter-molecular N-H⋯O and C-H⋯O hydrogen-bond ...[more]

PMID: 21581842

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