SYNTHESIS, CHARACTERIZATION AND THERMAL STUDIES ON SOME TRANSITION METAL COMPLEXES OF 2-THIOXO-1,2,5,6,7,8-HEXAHYDRO-QUINOLINE-3-CARBONITRILE

Authors

ALI HASSAN, Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
MOSTAFA OMARA, Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
ABD ELAZIZ ELSID, Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
GALAL GEMEIE, Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
TARK ALY, Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt

Corresponding Author

HASSAN, ALI

Document Type

Original Article

Subject Areas

Chemistry

Keywords

Transition metal complexes; QUINOLINE-3-CARBONITRILE

Abstract

Binary ligand complexes of 2-thioxo-1,2,5,6,7,8-hexahydro-quinoline-3-carbonitrile (HL1) with Fe(III) , Co(II), Ni(II) and Cu(II) ions were prepared and characterized on the basis of elemental analysis, conductivity data, IR, 1H NMR, electronic spectra and magnetic susceptibility measurements. The conductivity data obtained are interpreted on the basis of the molecular structure of the ligand complexes. The IR spectral band of the complex are assigned to the proper stretching frequencies in comparison to these of the free ligand. The various decomposition steps are determined from thermal analysis and determined the numbers of water molecules in the complexes. Kinetic parameters of the thermal decomposition have been evaluated and the data was refined using the least square method. Values of the activation energy, correlation coefficient and order of decomposition reaction were computed and discussed. Also Entropy (ΔS), enthalpy (∆H) and free energy (∆G) of activation were computed. The biological effects of the ligand complexes were studied.

How to Cite This Article

HASSAN, ALI; OMARA, MOSTAFA; ELSID, ABD ELAZIZ; GEMEIE, GALAL; and ALY, TARK (2012) "SYNTHESIS, CHARACTERIZATION AND THERMAL STUDIES ON SOME TRANSITION METAL COMPLEXES OF 2-THIOXO-1,2,5,6,7,8-HEXAHYDRO-QUINOLINE-3-CARBONITRILE," Al-Azhar Bulletin of Science: Vol. 23: Iss. 1, Article 5.
DOI: https://doi.org/10.21608/absb.2011.7193