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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Adly, Omima M. I. Emara, Adel A. A. Mashaly, Mahmoud M. Taha, Ali |
| Description | Author Affiliation: Taha A ( Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt. Electronic address: awrit@yahoo.com.); Emara AA ( Department of Chemistry, University College in Mekkah, Umm Al-Qura University, Mekkah 21955, Saudi Arabia.); Mashaly MM ( Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.); Adly OM ( Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.) |
| Abstract | Metal complexes of copper(II), nickel(II), cobalt(II), oxovanadium(IV), chromium(III) and cadmium(II) with a new bridged ONS dibasic tridentate hydrazone (H2L) derived from 5-acetyl-4-hydroxy-2H-1,3-thiazine-2,6(3H)-dione with S-methyl dithiocarbazate have been synthesized and characterized by elemental analysis, molar conductance, magnetic susceptibility measurements, spectral (infrared, electronic, mass, 1H NMR and ESR) studies as well as thermal gravimetric analysis (TGA). The synthesized complexes have dimeric structures with the general formula [ML(NO3)m(H2O)x]2·nH2O·zMeOH, L=dianion of the hydrazone, m=0-1, x=0-2, n=0-4 and z=0-1. The metal complexes exhibited square planar, tetrahedral and octahedral geometrical arrangements, the molar conductivity data indicates that all complexes are neutral. The Coats-Redfern equation was used to calculate the kinetic and thermodynamic parameters for the different thermal decomposition stages of some complexes. Structural parameters of the ligand and its metal complexes have been theoretically computed on the basis of semiempirical PM3 level and the results were correlated with their experimental data. Antibacterial activities of the free ligand and its metal complexes were screened against various organisms. |
| ISSN | 13861425 |
| Volume Number | 130 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-09-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Anti-infective Agents Chemistry Coordination Complexes Hydrazones Metals Thiazines Chemistry, Pharmaceutical Dimerization Electron Spin Resonance Spectroscopy Ions Kinetics Ligands Magnetic Resonance Spectroscopy Models, Molecular Molecular Conformation Spectrophotometry Spectrophotometry, Infrared Thermodynamics Thermogravimetry Journal Article Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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