New tetradentate Schiff bases of 2-amino-3,5-dibromobenzaldehyde with aliphatic diamines and their metal complexes: Synthesis, characterization and thermal stability

Add time:08/27/2019    Source:sciencedirect.com

The tetradentate Schiff base ligands (L1–L4), were synthesized by reaction between 2-amino-3,5-dibromobenzaldehyde and aliphatic diamines. Then, nickel and oxovanadium(IV) complexes of these ligands were synthesized and characterized by 1H NMR, Mass, IR, UV–Vis spectroscopy and thermogravimetry. The kinetic parameters of oxovanadium(IV) complexes were calculated from thermal studies. According to the results of thermogravimetric data, the thermal stability of oxovanadium(IV) complexes is as follow: VOL2(ClO4)2>VOL4(ClO4)2>VOL3(ClO4)2>VOL1(ClO4)2

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