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N,N'-Bis(4-hy-droxy-phen-yl)pyridine-2,6-dicarboxamide di-methyl-formamide monosolvate.

ABSTRACT: The mol-ecular structure of the pyridine derivative, C19H15N3O4·C3H7NO, shows almost planar geometry with dihedral angles of 6.9?(1) and 13.4?(1)° between the pyridine ring and the two benzene rings. This conformation is stabilized by two intra-molecular N-H?N(pyridine) bonds. In the crystal, strong O-H?O(carboxamide) and N-H?O(hy-droxy-phen-yl) hydrogen bonds link the mol-ecules, forming a three-dimensional structure. The di-methyl-formamide solvent mol-ecules are not involved in the hydrogen bonding. The structure shows pseudosymmetry, but refinement in the space group Pbcn leads to significantly worse results and a disordered di-methyl-formamide mol-ecule.

SUBMITTER: Waris G 

PROVIDER: S-EPMC3685123 | biostudies-other | 2013 Jun

REPOSITORIES: biostudies-other

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N,N'-Bis(4-hy-droxy-phen-yl)pyridine-2,6-dicarboxamide di-methyl-formamide monosolvate.

Waris Ghulam G   Siddiqi Humaira Masood HM   Flörke Ulrich U   Hussain Rizwan R   Butt M Saeed MS  

Acta crystallographica. Section E, Structure reports online 20130531 Pt 6

The mol-ecular structure of the pyridine derivative, C19H15N3O4·C3H7NO, shows almost planar geometry with dihedral angles of 6.9 (1) and 13.4 (1)° between the pyridine ring and the two benzene rings. This conformation is stabilized by two intra-molecular N-H⋯N(pyridine) bonds. In the crystal, strong O-H⋯O(carboxamide) and N-H⋯O(hy-droxy-phen-yl) hydrogen bonds link the mol-ecules, forming a three-dimensional structure. The di-methyl-formamide solvent mol-ecules are not involved in the hydrogen b  ...[more]

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