Abstract
The free Schiff bases H2MABCE, H2MABCP, and H2MABCT and their complexes [Ni(MABCE)], [Ni(MABCP)], [Ni(MABCT)], [Cu(MABCE)], [Cu(MABCP)], and [Cu(MABCT)] have been synthesized and characterized by spectroscopic, cyclic voltammetric, and thermal studies. The geometry around nickel is square planar with N2O2 donor atoms. Cyclic voltammetric studies of the Ni(II) complexes show one-electron quasi-reversible waves corresponding to Ni(II)/Ni(I) and Ni(II)/Ni(III) processes. The Cu(II) complexes exhibit an irreversible well defined one electron transfer reduction peak in the range of −0.34 to −1.08 V. The electronic spectra of the complexes suggest a four-coordinate geometry. The crystal structure of the ligand H2MABCT and the complex [Ni(MABCP)] have also been reported. The mean Ni–N and Ni–O bond distances are Ni–N = 1.849(4) and Ni–O = 1.837(4) Å.
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Anthonysamy, A., Balasubramanian, S., Usha, G. et al. Synthesis, spectroscopic, structural and electrochemical studies of nickel(II) and copper(II) complexes derived from 2-hydroxy-4-methacryloyloxybenzaldehyde. Transition Met Chem 33, 681–690 (2008). https://doi.org/10.1007/s11243-008-9096-5
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DOI: https://doi.org/10.1007/s11243-008-9096-5