NEW SOLVATOMORPH OF TETRAKIS(μ2-ACETATO-O,O′)-BIS(ISONICOTINAMIDE-N)-DI-COPPER(II): SYNTHESIS, IR, TGA AND X-RAY STUDY

Dinuclear tetracarboxylato-bridged copper(II) complex, [Cu-2(OAc)(4)(ina)(2)]center dot 2dmso (1), where OAc- = CH3COO-, ina=isonicotinamide and dmso=dimethylsulfoxide, has been prepared and crystal structure has been determined by single X-ray diffraction. The compound consists of dinuclear units, in which two Cu(II) ions are bridged by four syn, syn-eta(1):eta(1): mu-acetato bridges, showing a paddle-wheel cage-type with a square-pyramidal geometry. In the crystal structure, intermolecular N-H center dot center dot center dot O hydrogen bonds link the molecules into a 1D linear chain.