International Science Community Association Research Journal of Recent Sciences 2277 - 2502 6 5 2017 05 2 Studies on Copper (II), Nickel (II), and Cobalt (II) complexes of some new 2- hydroxychalcones and evaluation their antimicrobial activity 11 21 EN Khaja Rumana Begum Begum 1 Department of Entomology, College of Agriculture, Kolhapur-416 004, MS, India Sarjerao Patil 2 Department of Entomology, College of Agriculture, Kolhapur-416 004, MS, India Pandurang Mohite 3 Department of Entomology, College of Agriculture, Kolhapur-416 004, MS, India Monali S. Patel 1 Department of Aquatic Biology V.N.S.G.Uni, Surat. Gujarat, India Manoj Kapila 2 Department of Aquatic Biology V.N.S.G.Uni, Surat. Gujarat, India Abdulkareem Ali Hussien 1 P.G. Research Center, Department of Chemistry, Yeshwant Mahavidyalaya, Nanded-431602 (MS), India Bushra Ahmed Kateb 2 P.G. Research Center, Department of Chemistry, Yeshwant Mahavidyalaya, Nanded-431602 (MS), India Bushra Ahmed Kateb 3 Hodiedah University, Education College, Yemen P.A. Kulkarni 4 P.G. Research Center, Department of Chemistry, Yeshwant Mahavidyalaya, Nanded-431602 (MS), India > Research Paper 2017 3 11 2017 05 2 After having prepared a new series of Cu(II), Co(II) and Ni(II)complexes with 2-Hydroxy chalcone as ligand, the structures of these synthesized complexes is verified by using spectroscopic methods and elemental analysis. UV-Visible and IR spectra recorded of these prepared complexes, moreover the structures of complexes were confirmed by magnetic moments and molar conductance in DMSO. All these complexes are non electrolytes as the conductivity data confirms. In addition Analytical data confirmed were 1:2 stoichiometry. According to the suggestion of electronic spectral data the geometry of Cu(II) complexes is square planar and octahedral geometry for all Ni(II) and Co(II) complexes. From the antimicrobial screening done it shows enhanced activity of metal complexes as compared to their corresponding ligands. Copyright@ International Science Community Association