US EPA

4757208 

Journal Article 

Synthesis, Characterisation and Thermal Decomposition Studies of Cr(III), Mn(II) and Fe(III) Complexes of N,N '-bis [1,3-benzodioxol-5-ylmethylene] propane-1, 3-diamine 

Alex, PM; Aravindakshan, KK 

2009 

1 

Research Journal of Chemistry and Environment
ISSN: 0972-0626 

13 

1 

26-34 

English 

WOS:000264670100005 

A bidentate Schiff base namely, N,N'-bis [1,3-benzodioxol-5-ylmethylene] propane-1,3-diamine was synthesized by condensing piperonaldehyde (3,4-dioxymethylenebenzaldehyde) with propane-1, 3-diamine. Cr(III), Mn(II), Fe(III) complexes of this chelating / bridging ligand were synthesized using acetates, chlorides, bromides, nitrates and perchlorates of these metals. The ligand and the complexes were characterised by elemental analysis, H-1 NMR, UV-Vis and IR spectra, conductance and magnetic susceptibility measurements and thermo-gravimetric analysis. The ligand showed bridging nature in some of its complexes, as evidenced by magnetic and micro analytical data. The thermograms of three complexes were analysed and the kinetic parameters for the different stages of decompositions were determined. 

Schiff's base; diamine; piperonal; transition metal complexes; thermal decomposition