Acta Cryst. (2005). E61, m1553-m1555  [ doi:10.1107/S1600536805021732 ]

Di--oxo-bis[(histidinato-³N,N,O)oxomolybdenum(V)] trihydrate

P.-F. Wu, D.-S. Li, X.-G. Meng, X.-L. Zhong, C. Jiang, Y.-L. Zhu and Y.-G. Wei

Abstract: In the title dinuclear complex, [Mo₂(C₆H₈N₃O₂)₂O₄]·3H₂O, the Mo atoms, bridged by two -oxo atoms, have a distorted octahedral coordination environment. Besides the two bridging O atoms, the coordination of each Mo atom is completed by a terminal oxo atom and a tridentate histidinate ligand. The short MoMo distance of 2.5458 (4) Å may indicate the existence of an Mo-Mo metal bond. Intermolecular hydrogen bonding between the uncoordinated carboxylate O atoms and amino groups leads to a layer-like arrangement of the molecules. The uncoordinated water molecules link these layers via O-HO hydrogen bonds and help to stabilize the crystal packing.

Online 13 July 2005

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