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2,3-Diamino-pyridinium 4-nitro-benzoate.

ABSTRACT: In the title salt, C(5)H(8)N(3) (+)·C(7)H(4)NO(4) (-), the pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated. The protonated N atom and one of the two 2-amino groups are hydrogen bonded to the 4-nitro-benzoate anion through a pair of N-H?O hydrogen bonds, forming an R(2) (2)(8) ring motif. The carboxyl-ate mean plane of the 4-nitro-benzoate anion is twisted by 3.77?(5)° from the attached ring and the nitro group is similarly twisted by 2.28?(10)°. In the crystal, the mol-ecules are linked by N-H?O and C-H?O inter-actions into sheets parallel to (100).

SUBMITTER: Balasubramani K

PROVIDER: S-EPMC2969435 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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2,3-Diamino-pyridinium 4-nitro-benzoate.

Balasubramani Kasthuri K Fun Hoong-Kun HK

Acta crystallographica. Section E, Structure reports online 20090606 Pt 7

In the title salt, C(5)H(8)N(3) (+)·C(7)H(4)NO(4) (-), the pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated. The protonated N atom and one of the two 2-amino groups are hydrogen bonded to the 4-nitro-benzoate anion through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. The carboxyl-ate mean plane of the 4-nitro-benzoate anion is twisted by 3.77 (5)° from the attached ring and the nitro group is similarly twisted by 2.28 (10)°. In the crystal, the mol-ecules ...[more]

PMID: 21582806

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