Synthesis, characterization and comparative studies of mono- and dimeric copper(II) complexes containing tripodal ligands

Abstract

Mono and dimeric bromo-bridged copper(II) complexes of the type [CuBr₂(L)] and [Cu₂Br₂(L)₂](ClO₄)₂ containing nitrogen donor tripodal ligands L = 2,6-bis(pyrazol-1-yl)pyridine (bppy) or 2,6-bis(3,5-dimethylpyrazol-1-yl)pyridine (dmbppy) have been synthesized. All complexes have been characterized by elemental analysis, IR, ESR and electronic spectra and magnetic susceptibility and cyclic voltammetry measurements.

Keywords:

• Copper(II)
• Tripodal
• Monomeric
• Dimeric
• Cyclic voltammetry
• ESR

Acknowledgements

Thanks are due to the Department of Science & Technology, New Delhi for their financial support through F.I.S.T. programme to the department. Thanks are also due to the U.G.C., New Delhi for financial support by way of SAP-DSA, to the department. One of the authors, SC, also thanks U.G.C., New Delhi, India for the financial help under MRP (sanction letter No. F-5-48/2004-05(MRP/NERO)/2555).