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2,3-Diamino-pyridinium 6-carb-oxy-pyridine-2-carboxyl-ate.

ABSTRACT: The asymmetric unit of the title proton-transfer compound, C(5)H(8)N(3) (+)·C(7)H(4)NO(4) (-), consists of one mono-deprotonated pyridine-2,6-dicarb-oxy-lic acid as anion and one protonated 2,3-diamino-pyridine as cation. The crystal packing shows extensive O-H⋯O, N-H⋯O and N-H⋯N hydrogen bonds. Thre are also several π-π inter-actions between the anions and also between the cations [centriod-centroid distances = 3.6634 (7), 3.7269 (7), 3.6705 (7) and 3.4164 (7) Å].

SUBMITTER: Foroughian M

PROVIDER: S-EPMC3238974 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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2,3-Diamino-pyridinium 6-carb-oxy-pyridine-2-carboxyl-ate.

Foroughian Mahsa M Foroumadi Alireza A Notash Behrouz B Bruno Giuseppe G Amiri Rudbari Hadi H Aghabozorg Hossein H

Acta crystallographica. Section E, Structure reports online 20111116 Pt 12

The asymmetric unit of the title proton-transfer compound, C(5)H(8)N(3) (+)·C(7)H(4)NO(4) (-), consists of one mono-deprotonated pyridine-2,6-dicarb-oxy-lic acid as anion and one protonated 2,3-diamino-pyridine as cation. The crystal packing shows extensive O-H⋯O, N-H⋯O and N-H⋯N hydrogen bonds. Thre are also several π-π inter-actions between the anions and also between the cations [centriod-centroid distances = 3.6634 (7), 3.7269 (7), 3.6705 (7) and 3.4164 (7) Å]. ...[more]

PMID: 22199823

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