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Researchers at Faculty of Sciences Report New Data on Supramolecular Research

June 24, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Supramolecular Research. According to news reporting originating in Dumyat, Egypt, by NewsRx journalists, research stated, "A series of heterocyclic ligand of copper(II) complexes have been synthesized by the reaction of copper(II) acetate with 5-(4 '-derivatives phenylazo)-2-thioxothiazolidin-4-one (HLn) yields 1:1 and 1:2 (M:L) complexes depending on the reaction conditions. The elemental analysis, spectral (IR and ESR), conductance, magnetic measurements, and thermogravimetric analysis (TGA) are used to characterize the isolated complexes."

The news reporters obtained a quote from the research from the Faculty of Sciences, "It is found that the change of substituent affects the thermal properties of azodye rhodanine derivatives and their Cu(II) complexes. The molecular and electronic structures of the investigated compounds (HLn) were also studied using quantum chemical calculations. According to intramolecular hydrogen bond leads to increasing of the complexes stability. The data revealed that the coordination geometry around Cu(II) in all complexes (1-4) exhibit a trans square planar by NO monobasic bidentate and the two monobasic bidentate in octahedral complexes (5-7). Electronic, magnetic data and ESR spectra proposed the square planar structure for all complexes (1-4) under investigation. The value of covalency factor (beta(*)(1))(2) and orbital reduction factor K accounts for the covalent nature of the complexes."

According to the news reporters, the research concluded: "The activation thermodynamic parameters, such as activation energy (E-a), enthalpy (Delta H*), entropy (Delta S*), and Gibbs free energy change of the decomposition (Delta G*) are calculated using Coats-Redfern and Horowitz-Metzger methods."

For more information on this research see: Supramolecular spectroscopic and thermal studies of azodye complexes. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2014;127():310-328. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England (see also Supramolecular Research).

Our news correspondents report that additional information may be obtained by contacting A.Z. El-Sonbati, Damietta Univ, Fac Sci, Dept. of Chem, Dumyat, Egypt. Additional authors for this research include M.A. Diab, A.A. El-Bindary and S.M. Morgan.

Keywords for this news article include: Egypt, Dumyat, Africa, Nanotechnology, Emerging Technologies, Supramolecular Research

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Source: Life Science Weekly

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