The Schiff base
N-crotonyl-2-hydroxyphenylazomethine HL, derived from the reaction of acrylamide and salicylaldehyde, was synthesised. Polymeric
complexes were obtained from the reaction of polymeric HL with divalent metals. The mode of bonding and overall geometry of
the complexes were determined through physico-chemical and spectroscopic methods and compared with that previously reported
for the analogous monomeric ligand. These studies revealed tetrahedral geometries around the metal centres for Mn(II), Co(II),
Zn(II), Cd(II) and Hg(II) complexes of general formula [M(L)Cl], octahedral for Ni(II) and Cu(II) complexes of general formula
[M′(L)Cl(H
2O)
2], and square planar for Pd(II) complex of general formula [Pd(L)Cl].