Acta Cryst. (2002). E58, m625-m627  [ doi:10.1107/S1600536802018329 ]

Poly[[diaqua(₄-squarato-O,O',O'',O''')manganese(II)] 0.93-hydrate]

J. Greve and C. Näther

Abstract: In the title compound, {[Mn(C₄O₄)(H₂O)₂]·0.93H₂O}_n, the Mn atoms are each coordinated by four O atoms of two pairs of symmetry-related squarate dianions and two O atoms of two symmetry-related water molecules within slightly distorted octahedra. The water molecules occupy general positions and the two crystallographically independent squarate dianions, as well as the Mn atom, are located in special positions. The squarate dianions and the water molecules are connected via O-HO hydrogen bonding. In the crystal structure, voids are found that are filled with additional, disordered, clathrate water molecules.

Online 11 October 2002

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