SYNTHESIS, CHARACTERIZATION AND THERMAL STUDIES ON SOME TRANSITION METAL COMPLEXES OF TETRAHYDRO-2-THIOXO-1H—CYCLOPENTA[b] PYRIDINE-3-CARBONITRILE.

Authors

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

Corresponding Author

HASSAN, ALI

Document Type

Original Article

Subject Areas

Chemistry

Keywords

transition; Metal complexes; PYRIDINE-3-CARBONITRILE

Abstract

A series of Cr(III), Co(II) , Cu(II) and Zn(II) complexes of two types (ML,ML ) Where L is 2, 5, 6, 7 – tetrahydro – 2 –thioxo – 1H- cyclopenta[b] pyridine- 3- carbonitrile are synthesized and confirmed by their elemental microanalysis, IR, electronic absorption spectra, magnetic moment and HNMR spectra. 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. And biological effects were studied.

How to Cite This Article

HASSAN, ALI; OMARA, MOSTAFA; ELSID, ABD ELAZIZ; EL GEMEIE, GALAL; and ALY, TAREK (2012) "SYNTHESIS, CHARACTERIZATION AND THERMAL STUDIES ON SOME TRANSITION METAL COMPLEXES OF TETRAHYDRO-2-THIOXO-1H—CYCLOPENTA[b] PYRIDINE-3-CARBONITRILE.," Al-Azhar Bulletin of Science: Vol. 23: Iss. 1, Article 8.
DOI: https://doi.org/10.21608/absb.2011.7192