Acta Cryst. (2002). E58, m634-m635  [ doi:10.1107/S1600536802018342 ]

Redetermination of catena-poly[diaqua(oxydiacetato-O,O',O'')cobalt(II) monohydrate]

Z.-Y. Wu, D.-J. Xu, J.-Y. Wu and M. Y. Chiang

Abstract: The structure of the title compound, catena-poly[[[diaquacobalt(II)]--oxydiacetato-⁴O,O',O'':O''')cobalt(II)] monohydrate], {[Co(C₄H₄O₅)(H₂O)₂]·H₂O}_n, (I), was first determined and reported by Hatfield et al. [Proc. Indian Acad. Sci. Chem. Sci. (1987), 98, 23-31]. We present here a redetermination, with appreciably improved accuracy and successful location of H atoms. In the crystal structure, oxydiacetate plays the role of both chelating and bridging ligand, resulting in he formation of polymeric chains of complex molecules along the crystallographic b axis. Water molecules occupy the apical positions, thus completing the coordination octahedron of the Co^II atom. The polymeric chains are interlinked via intermolecular hydrogen bonding between carboxylate and water molecules, forming the three-dimensional supramolecular structure.

Online 18 October 2002

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