In the present paper we report the preparation and characterisation of a few homobinuclear metal complexes of the type [ML^1-2(H₂O)₂] ₂X₂ with a pair of NNSO Schiff base, L¹ = 1-hydroxy-imino-1,2 diphenyl-3,4-diazo-5-amino-5-mercapto-2-pentene (HAPAME) and L² = 2-hydroxy-imino-3-methyl-4,5-diazo-6-mercapto-6-amino-3-hexane (HAMAME). M = Co(II), Ni(II) and Cu(II) and X = Cl^-, Br^-, NO₃^-, ClO₄^- and CH₃COO^-. Structural elucidation has been done on the basis of infrared spectra, electronic spectra, magnetic susceptibility, conductivity measurement and thermal analysis. On the basis of above observations, the ligands HAPAME/HAMAME coordinate to the metal ion in a tetradentate fashion and structure of the complexes proposed to be octahedral in nature.