Thermal Behavior of Schiff base Ligand (3,4-MeO-ba)2en and its Cd(II) and Co(II) Complexes

Cd(II) and Co(II) complexes of bidentate Schiff base ligand (3,4-MeO-ba)2en ((3,4-MeO-ba)2en =N,N′-bis(3,4-dimethoxybenzylidene)-1,2-diaminoethane) have been prepared and characterized by elemental analyses and FT-IR spectroscopy. Thermal decomposition of the ligand and synthesized complexes were studied by thermogravimetric analyses (TG) in order to evaluate their thermal stability and thermal decomposition pathway. Three similar decomposition steps occurred for the two Cd(II) (1) and Co(II) (2) complexes, yielding Cd and Co as final residue, respectively, while decomposition of the Schiff base ligand (3,4-MeO-ba)2en occurred in two steps. The general formula established from experimental data were found to be MCl2(3,4-MeOba) 2en (M = Cd(II) (1) and Co(II) (2)).

Author(s): Aliakbar Dehno Khalajia, and Debasis Dasb

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