Synthesis , Characterization and Theoretical Study of Some Transition Metal Complexes with Some Terpyridines

Abstract

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.