Synthesis, spectral and thermal studies of 2,2′-bipyridyl adducts of bis(N-alkyl-N-phenyldithiocarbamato)zinc(II)
2011
Onwudiwe, Damian C. | Ajibade, Peter A. | Omondi, B.
Three Zn(II) adducts of N-alkyl-N-phenyl dithiocarbamate with 2,2′-bipyridine have been synthesized and characterized by elemental analysis and spectroscopic techniques. The compounds are formulated as [Zn(mpdtc)₂bpy] (1), [Zn(epdtc)₂bpy] (2), and [Zn(bpdtc)₂bpy] (3) (where m=methyl, e=ethyl, b=butyl; p=phenyl and bpy=2,2′-bipyridine). The single crystal X-ray structures of compounds (1) and (2) are also reported. It revealed that compound (1) exists as a five coordinate trigonal bipyramidal structures in which one dithiocarbamate acts as a chelating ligand and the other occupying the apical position acts as a monodentate ligand, while compound (2) exists as six coordinate octahedral species. Each of the two compounds has four molecules in the unit cell with the uncoordinated S atom in complex 1 involved in a weak C–H⋯S interaction. The thermal decomposition profiles of the compounds are also reported.
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