Acta Cryst. (2002). E58, m444-m446  [ doi:10.1107/S1600536802012850 ]

trans-Bis(acetonitrile)tetraaquacobalt(II) dinitrate at 150 K

S. A. Barnett, A. J. Blake, N. R. Champness and C. Wilson

Abstract: In the title compound, [Co(CH₃CN)₂(H₂O)₄](NO₃)₂, the Co^II cations occupy crystallographic inversion centres and adopt a distorted octahedral coordination geometry, with trans-disposed acetonitrile ligands. Extensive hydrogen-bonding interactions between the coordinated water ligands and the nitrate counter-anions lead to the formation of a three-dimensional framework. There are substantial differences between the structure of the title compound at 150 K and the previously reported structure at 293 K.

Online 25 July 2002

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