Coordination Chain Polymers of Some Transition Metals With Schiff Base

The Schiff base derived from terephthalaldehyde and o-aminophenol is known as N,N′-di(o-hydroxyphenyl)terephthalaldehydediimine and is termed here as H2SB. The polychelates of this Schiff base having the general formula [M(SB)(H2O)2]n [where M = Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II)] have been synthesized and characterized on the basis of elemental analyses, infrared spectra, electronic spectra, magnetic measurements and thermogravimetric analyses. The Schiff base act as uninegative bidentate ligand and bonding occurs through the hydroxyl oxygen and nitrogen atoms. An octahedral geometry has been assigned to all of the prepared polychelates.