Abstract

E. M. R. Kiremire, G. Kumar, K. Chibale, J. C. A. Boeyens, J. Makhubela and E. Matabane

The ¹HNMR paramagnetic shifts of NiL2 phen, Nil2 Im2 and ML2 complexes where M = Co(II), Ni(II), Cu(II) and Zn(II) and L is the deprotonated imidazolidine nitroxyl free radical ligand have been obtained and analysed. The paramagnetic shifts of the phenyl proton were found to increase in the order Zn(II) < Cu(II) < Ni(II) < Co(II) in congruence with increase in the magnetic moment of the metal ion.

Paramagnetic shifts; free radical; transition metal complexes

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