Synthesis , characterization and theoretical study of some transition metal complexes with some terpyridines

الملخص EN

The present investigation involves the synthesis of new Co (II), Ni (II) and Cu (II) complexes from reaction Co (II), Ni (II) and Cu (II) chlorides with two terpyridines.

One of the ligands act as tridentate and the other act as bidentate.

All the prepared complexes were characterized by their metal analyses, IR and UV-vis spectroscopy, conductivity, magnetic measurements and theoretical study. Conductivity data in DMSO showed that some complexes are 1 : 2 (M : L) electrolytes which assigning the formula [M (L1) 2 (H2O) 2] Cl2 while the other complexes are nonelectrolyte which assigning the formula [M2 (L2) 2Cl4].

Electronic spectral data and magnetic measurements showed that some of the complexes have octahedral geometry while the other complexes have tetrahedral geometry.