INSTITUTUL NAÅ¢IONAL DE CERCETARE-DEZVOLTARE - ICECHIM

5 - Chemistry and Petrochemistry - OCOMPLEXES OF 5-BROMO-2-HYDROXYBENZILIDENE-2-MERCAPTOANILINE.Georgeta Zamfir 1 , Nicolae Stanica 2 , Constantin Draghici 3 , Angela Kriza 4 .1.Technical Collegium Mircea cel Batrin,52 Feroviarilor Street , 012207,Bucharest,Romania.2.Institute of Physical Chemistry of Romanian Academy ,202 Splaiul Independentei,060021,Bucharest,Romania.3. Institute of Organic Chemistry of Romanian Academy ,202Splaiul Independentei 060023,Bucharest,Romania.4.University of Bucharest,Faculty ofChemistry,23 Dumbrava Rosie Street 020462 ,Bucharest, Romania.Transitional metal complexes, by template synthesis with the ligand 5-bromo-2-hydroxybenzilidene-2-mercaptoaniline type:[M(HL) 2 ].nH 2 O, where M=Ni(II), n=1 andM=Cu(II), Zn(II), Cd(II), n=0, were optained[1,2].Complexes were characterizedwith:elemental analysis, IR,UV-Vis.-NIR, 1 H-NMR, 13 C-NMR, EPR spectroscopy, electricconductivity and magnetic susceptibility. Elemental analysis suggest M:L of 1:2stoechiometry for all complexes. Complexes are colored solides and decompose at hightemperatures(300 0 C).They are insoluble in common organic solvents, soluble in DMF andDMSO and are nonelectrolytes. Complexes haves weak antibacterial activity. Ions of Cu(II)have octahedral geometry, Ni(II) ions have square-planar geometry, and Zn(II) and Cd(II)ions have tetraedric geometry. Ligand acts as ONS monoanionic ligand for Cu(II) ions and asNS monoanionic ligand for Ni(II), Zn(II) and Cd(II) ions[3-5].1.Jadamus H., Fernando Q., Freiser H., J.Am.Chem.Soc.,1964,3056.2.Lindoy F, .Livingstone S.E., Inorg.Chim.Acta,1967,365.3.Fackler J.P.,Coucouvanis D., J.Am.Chem.Soc.,1973,5556.4.Mishra A.P., Srivastava S.K., Srivastava V., J.Ind.Chem.Soc.,73,1996,261.5.Mehta B.H., Shaikh J.A., J.Ind.Chem.Soc.,86,2009,624