Synthesis, spectral and magnetic studies of binuclear Mn [II], Co [II] and Cu [II] complexes with hydrazone ligands derived from 1,4-dihydrazinophthalazine

ABSTRACT

Binuclear Mn[II], Co[II], Ni[II] and Cu[II] complexes of some hydrazone derivatives were synthesized and characterized by elemental analysis, conductance measurements and IR spectra. The hydrazones behaved as monoanionic bidentate ligands. Electronic spectra and magnetic susceptibility measurements of the solid complexes indicated tetrahedral geometry around Co[II] and Mn[II] ions, octahedral geometry around Ni[II] and square planar the Cu[II] ion