10.22376/ijpbs.2019.10.1.p1-12 Volume 2 Issue 4 2011 (October - December) Condensation of substituted salicylaldehydes with primary amine of naphtha-thiazole gave a of Schiff base, such as 2-[N-(3,4-dimethoxy-2-hydroxyphenyl)–methylidinyl]-amino-4, 5-dihydronaphtho[1,2d]-thiazole (HL); Complexes were synthesized by reaction between cobalt chloride, nickel chloride and copper chloride with the ligand (HL). These complexes were characterized by elemental analyses, conductance measurements, magnetic susceptibility measurements, IR, lessThan sup greaterThan 1 lessThan /sup greaterThan H NMR, and electronic spectral studies. On the basis of magnetic and spectral studies, octahedral geometry was assigned for these complexes. These complexes have been screened lessThan i greaterThan in vitro lessThan /i greaterThan for their possible antimicrobial activity Vijaykumar Durg, Nirdosh Patil And K.H. Shivaprasad Metal complexes, Thiazoles, Ligand, Magnetic Susceptibility, 256-260