Polymeric Coordination Complexes of Some Bipositive Metal Ions With Schiff Bases Derived form 5-Bromo Salicylaldehyde and P-Phenylenediamine or Benzidine

D. K. Dwivedi, R. C. Maurya, R. K. Shukla, N. Anandam, R. Shukla and R. C. Dubey

Chemical Laboratories, Atarra College, Atarra-210 201 India.

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ABSTRACT:

Cobalt (II), Nickel (II) and Copper (II) complexes of the schiff bases derived from 5-bromoslicylaldehyde with p-phenylenediamine and benzidine were synthesized and characterised on the basis of analytical, magnetic, thermogravimetric and spectral data. The complexes were formulated as [M L (H2O)2]n, where M=Co(Il), Ni(II) or Cu(II), L=di-5-bromosalicyldene p-phenylenediamine (PPBrS) or di-5-bromosalieylidenebenzidine (BNBrS) and n=degree of polymeriaation. The schiff bases behave as dibasic tetradentate ONNO - donor ligands.

KEYWORDS:

Schiff Bases Derived;P-Phenylenediamine