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DOI: 10.1039/A905020E (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1999, 3573-3578

Preparation, characterisation and structures of copper(II) complexes of an asymmetric anti-cancer drug analogue[hair space]†

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Boujemaa Moubaraki, Keith S. Murray, John D. Ranford, Jagadese J. Vittal, Xiaobai Wang and Yan Xu

Abstract

A series of copper(II) complexes of the anti-cancer drug analogue 1,5-bis(2-pyridylmethylene)thiocarbonohydrazide (H2L) was synthesized from acid solution. The single crystal structures of two asymmetric, binuclear, complexes [{Cu2(HL)(H2PO4)2}2][NO3]2·2H2O and [{Cu2(HL)(CF3CO2)3}2] and two mononuclear, monomeric complexes [Cu(H3L)(H2O)][ClO4]3·2H2O and [Cu(H3L)(NO3)2]NO3 were solved. The binuclear complexes are dimeric with three-atom anion bridges. Selective removal of one copper ion gives mononuclear monomers. The primary magnetic exchange is between copper(II) centres within a planar binuclear unit with weaker interactions via anion or sulfur bridges.

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