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2-Amino-5-methyl-pyridinium 6-oxo-1,6-dihydro-pyridine-2-carboxyl-ate.

ABSTRACT: The anion of the title salt, C(6)H(9)N(2) (+)·C(6)H(4)NO(3) (-), undergoes an enol-to-keto tautomerism during the crystallization. In the crystal structure, the cation and anion are held together by a relatively short N-H?O hydrogen bond, and the two anions are further connected to each other by a pair of N-H?O hydrogen bonds with an R(2) (2)(8) ring motif, thus forming a centrosymmetric 2 + 2 aggregate. The aggregates are further linked through weak N-H?O and C-H?O hydrogen bonds, resulting a three-dimensional network.

SUBMITTER: Thanigaimani K

PROVIDER: S-EPMC3515249 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

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2-Amino-5-methyl-pyridinium 6-oxo-1,6-dihydro-pyridine-2-carboxyl-ate.

Thanigaimani Kaliyaperumal K Farhadikoutenaei Abbas A Khalib Nuridayanti Che NC Arshad Suhana S Razak Ibrahim Abdul IA

Acta crystallographica. Section E, Structure reports online 20121020 Pt 11

The anion of the title salt, C(6)H(9)N(2) (+)·C(6)H(4)NO(3) (-), undergoes an enol-to-keto tautomerism during the crystallization. In the crystal structure, the cation and anion are held together by a relatively short N-H⋯O hydrogen bond, and the two anions are further connected to each other by a pair of N-H⋯O hydrogen bonds with an R(2) (2)(8) ring motif, thus forming a centrosymmetric 2 + 2 aggregate. The aggregates are further linked through weak N-H⋯O and C-H⋯O hydrogen bonds, resulting a t ...[more]

PMID: 23284469

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