SYNTHESIS AND SPECTRAL STUDIES OF TRANSITION METAL COMPLEXES WITH 5,7,12,14-TETRAMETHYL-1,4,8,11-TETRAAZACYCLOTETRADECA-4,7,11,14-TETRAENE, A FOURTEEN-MEMBERED TETRADENTATE MACROCYCLIC LIGAND

Abstract

Abstract Complexes of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Pd(II) and Cu(II) with a fourteen-membered macrocyclic ligand have been prepared and characterized by magnetic moment, infrared, electronic and EPR spectral studies. All of complexes were found to have six-coordinate geometry and are of the high-spin type except the Pd(II) complex which is four-coordinate, square-planar and diamagnetic. ACKNOWLEDGMENT Thanks are due to the Department of Science and Technology (DST), New Delhi, and one of us (K.G) is thankful to University Grants Commission, Delhi for financial assistance. Also we are thankful to RSIC, IIT Mumbai for recording EPR spectra.