Abstract
A new series of Mn(II), Co(II), Ni(II), Cu(II), Fe(III), Zn(II), Cd(II), Zr(IV) and Ag(I) complexes of 1-(2-phenylhydrazone propane-2-ylidene) isonicotinoylhydrazide (1) have been prepared and characterised. The complexes are non electrolytes and the ESR spectra of the solid complexes [Cu(1)2(OAc)2].3H2O, (3), [CuCl2(1)].0.5H2O, (8), [Mn(1)2(OAc)2].H2O, (5) and [MnCl2(1)2].2H2O, (11) are isotropic, whereas those of [Co(1)2(OAc)2].3H2O, (4) and [Co(1)(NO3)2]. 1.5H2O, (20) are non-axial and axial in type. Antibacterial studies show that the metal complexes exhibit a greater inhibitory effect than (1).
