eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 June 2008 4 1 71 76 juc 763 article B. K. RAI (binodkr_rai@yahoo.co.in) 1 S.N. PRASAD 2 Department of Chemistry, L.N.T. College, Muzaffarpur (INDIA) Department of Chemistry, S.R.A.P., College, Barchakia <p><br /> A series of complexes of general formula [M(L^1-2)₂X₂] where M = Co(II), Ni(II) and Cu(II); and X = Cl^-, Br^- and I^- and L¹ = Isobenzofuran 1 (3H) one semicarbazone; L² = Isobenzofuran 1 (3H) one thiosemicarbazone have been synthesized. The geometry of the complexes have been characterized by elemental analysis, molar conductance, thermal analysis, spectral study (IR and UV) and magnetic susceptibility measurements. Octahedral geometry is tentatively proposed for all the complexes. Antimicrobial activity of the ligand and metal complexes were screened and observed that metal complexes were found to be more active than free ligands.<br /> <em>Key word:</em> Isobenzofuran semicarbazone/thiosemicarbazone, metal complexes, antimicrobial activity.</p> https://journalofchemistry.org/paper/763/ Isobenzofuran semicarbazone thiosemicarbazone metal complexes