Summary
The quadridentate ligands, prepared by condensation ofS-methyl- andS-benzyldithiocarbazate with glyoxal, form stable crystalline complexes of gerferal formula, M(SNNS) (M=NiII, CuII, ZnII and CdII; SNNS−2=ligand dianion). The NiII complexes are diamagnetic but electronic spectral data support a dimeric five-coordinate geometry. Based on magnetic and spectral data, a five-coordinate square-pyramidal structure is also assigned to the copper(II) complexes. The ZnII and CdII complexes are polymeric and octahedral. The Schiff bases and metal complexes display good antifungal and antibacterial properties.
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Ali, M.A., Haroon, C.M., Nazimuddin, M. et al. Synthesis, characterization and biological activities of some new nickel(II), copper(II), zinc(II) and cadmium(II) complexes of quadridentate SNNS ligands. Transition Met. Chem. 17, 133–136 (1992). https://doi.org/10.1007/BF02910804
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DOI: https://doi.org/10.1007/BF02910804