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Pyridinium cis-diaqua-bis-(oxalato-?(2)O,O')chromate(III).

ABSTRACT: The title compound, (C(5)H(6)N)[Cr(C(2)O(4))(2)(H(2)O)(2)], contains one protonated pyridine mol-ecule and one [Cr(C(2)O(4))(2)(H(2)O)(2)](-) complex anion in the asymmetric unit. The Cr(III) in the complex anion is coordinated in a distorted octa-hedral environment by two O atoms from two cis water mol-ecules and four O atoms from two chelating oxalate dianions. The crystal packing is stabilized by inter-molecular N-H?O(oxalate) and O-H?O(oxalate) hydrogen bonds and by ?-? stacking inter-actions (centroid-centroid distance = 3.602?Å) between pyridine rings, thereby building up a three-dimensional network.

SUBMITTER: Nenwa J

PROVIDER: S-EPMC3515167 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

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Pyridinium cis-diaqua-bis-(oxalato-κ(2)O,O')chromate(III).

Nenwa Justin J Befolo Olivier O Gouet Bebga B Mbarki Mohammed M Fokwa Boniface P T BP

Acta crystallographica. Section E, Structure reports online 20121031 Pt 11

The title compound, (C(5)H(6)N)[Cr(C(2)O(4))(2)(H(2)O)(2)], contains one protonated pyridine mol-ecule and one [Cr(C(2)O(4))(2)(H(2)O)(2)](-) complex anion in the asymmetric unit. The Cr(III) in the complex anion is coordinated in a distorted octa-hedral environment by two O atoms from two cis water mol-ecules and four O atoms from two chelating oxalate dianions. The crystal packing is stabilized by inter-molecular N-H⋯O(oxalate) and O-H⋯O(oxalate) hydrogen bonds and by π-π stacking inter-action ...[more]

PMID: 23284394

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