PREPARATION AND CHARACTERISATION OF FIRST Row TRANSITION METAL COMPLEXES WITH QUADRIDENTATE TRIPODAL LIGAND TREN [TREN=TRIS (2-AMINOETHYL) AMINE] ?

Abstract

Isothiocyanato complexes offirstrow transition metals with quadridentate tripodal ligand, tris(2-aminoethyl) amine, (tren) , were prepared and characterized. Empirical formula of the compounds was determined on the basis of elemental analysis.
All except Co-compounds have the general formula [M(tren)NCSlSCN (M=Mn(II), Ni(II), Cu(II) and Zn(II). In the case of Co-compound, chloride ion remains as counter ion. The bonding pattern of the compounds have been discussed on the basis of IR and UV -visible spectral analysis. The SCN ion, bonded to metal through the N atom, has also been supported
by the spectra. X-ray powder pattern of the complexes were also examined.