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976195 
Journal Article 
Studies of some Co(II), Ni(II) and Cu(II) complexes with a mixed ligand Schiff base 
Rai, BK; Sharma, K 
2008 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
20 
1 
137-142 
English 
WOS:000259602100023 
Synthesis of mixed ligand Schiff base complexes of general formula of the type [M(DOSC)(2)X-2], were M = Co(II), Ni(II) and Cu(II), DOSC = 1,2-dimethyl-4-oxoquinazoline semicarbazone and X = Cl-, Br-, I-, NO3- and ClO4-. These complexes were characterized by elemental analysis, molar conductance, IR spectra, electronic spectra and magnetic susceptibility. On the basis of above observations the ligand DOSC have been proposed to act in a bidentate manner, coordinating to the metal ion through the nitrogen and oxygen atom of semicarbazone moiety. The remaining coordination sites are occupied by anions such as Cl-, Br-, I-, NO3- and ClO4-. Electronic spectra and magnetic susceptibility measurements reveal octahedral geometry around the central metal ion. The complexes were found to be non-electrolytic in nature on the basis of low value of molar conductance. 
Co2+; Ni2+ and Cu2+ complexes; 1,2-dimethyl-4-oxoquinazoline semicarbazone