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

Khosro Mohammadi; Seyyedeh Sedigheh Azad; Ameneh Amoozegar

doi:10.1016/j.saa.2015.02.069

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

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Jul 5:146:221-7. doi: 10.1016/j.saa.2015.02.069. Epub 2015 Mar 10.

Authors

Khosro Mohammadi¹, Seyyedeh Sedigheh Azad², Ameneh Amoozegar²

Affiliations

¹ Chemistry Department, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Islamic Republic of Iran. Electronic address: khmohammadi@pgu.ac.ir.
² Chemistry Department, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Islamic Republic of Iran.

PMID: 25813179
DOI: 10.1016/j.saa.2015.02.069

Abstract

The tetradentate Schiff base ligands (L(1)-L(4)), 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 (1)H 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: [Formula: see text].

Keywords: 2-Amino-3,5-dibromobenzaldehyde; Aliphatic diamines; Nickel complex; Oxovanadium(IV) complex; Schiff base; Thermogravimetry.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Benzaldehydes* / chemical synthesis
Benzaldehydes* / chemistry
Diamines* / chemical synthesis
Diamines* / chemistry
Molecular Structure
Schiff Bases / chemical synthesis
Schiff Bases / chemistry
Vanadates* / chemical synthesis
Vanadates* / chemistry

Substances

Benzaldehydes
Diamines
Schiff Bases
oxovanadium IV
Vanadates