Journal
ARABIAN JOURNAL OF CHEMISTRY
Volume 10, Issue 3, Pages 389-397Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.arabjc.2015.04.001
Keywords
Ruthenium(II); Spectroscopy; Thermal stability; Molecular modeling
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Ru(II) complexes with some dinitrogen ligands; 3,4-diamino benzoic acid (DABA), 2-hydazinopyridine (hzpy), 2,2'-bipyridyl (bipy) and anthranilic acid (anth) have been synthesized and characterized by using IR, mass, and UV-Vis spectrometry and thermal analysis. The thermodynamic parameters (Delta E, Delta H, Delta S and Delta G) have been calculated by using Coats-Redfern and Horowitz-Metzger methods. The electrochemical properties of these complexes have been studied by using cyclic voltammetry. The evaluated energies of the HOMO and LUMO are in the range of -4.94 to -4.85 eV and -2.86 to -2.68 eV, respectively. The complexes have been proven to have an octahedral geometry with DABA, hzpy and bipy as N2 donor ligands and NSC as monodentate ligand. The structure of the Ru(II) complexes has been geometrically optimized by using parameterized PM3 semiempirical method. (C) 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
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