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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Elaasar, A. A. El-Sayed, Ahmed E. M. El-Defrawy, M. M. Al-Fulaij, O. A. El-Asmy, A. A. |
| Description | Country affiliation: Egypt Author Affiliation: El-Sayed AE ( Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt.); Al-Fulaij OA ( Chemistry Department, Faculty of Science, Kuwait University, Kuwait.); Elaasar AA ( Chemistry Department, Faculty of Science, Kuwait University, Kuwait); El-Defrawy MM ( Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt.); El-Asmy AA ( Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt) |
| Abstract | Metal complexes of the chloride, nitrate and acetate salts of Co(II), Ni(II) Cu(II), Zn(II), Cd(II) or Hg(II) with 2,3-butanedione bis(isonicotinylhydrazone) [BBINH] have been synthesized and structurally characterized. The crystal of BBINH was solved to crystallize as monoclinic system with space group of P121/c14. The formulae of the complexes were assigned based on the elemental analysis and mass spectra. The formation of BBINH complexes depend on the metal anion used. All complexes are nonelectrolytes except for the complexes 2, 3, 4 are (1:1) and 13 and 14 which are 1:2 electrolytes. BBINH behaves as a neutral tetradentate (N2O2) in the chloride complexes of Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II). In [Co2(BBINH)(H2O)Cl3]Clâ H2O, BBINH has the same dentate but with the two Co(II) ions. In the acetate complexes, [Ni2(BBINH-2H)(H2O)2(OAc)2]â 3H2O and [Cu2(BBINH-2H)(OAc)2]â 5H2O, BBINH acts as a binegative tetradentate with the two metal ions. The ligand in the nitrate complexes acts as a neutral bidentate via the two hydrazone azomethine C=NHy; the nitrate ions are ionic in the Cd(II) and Zn(II) complexes and covalent in the Ni(II) complex. The data are supported by NMR ((1)H and (13)C) spectra. The magnetic moments and electronic spectra of all complexes provide tetrahedral, square planar and/or octahedral structure. The decomposition of the complexes revealed the outer and inner solvents as well as the remaining residue based on TGA. The complexes have variable activities against some bacteria and fungi. The ligand is inactive against all tested organisms. The activity of Cd(II) and Hg(II) may be related to the geometry of the complexes. |
| ISSN | 13861425 |
| Volume Number | 135 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-01-25 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Coordination Complexes Pharmacology Hydrazones Chemistry Transition Elements Bacteria Drug Effects Carbon-13 Magnetic Resonance Spectroscopy Crystallography, X-ray Electrons Fungi Ligands Magnetic Phenomena Microbial Sensitivity Tests Molecular Weight Proton Magnetic Resonance Spectroscopy Spectrophotometry, Infrared Thermogravimetry Transition Temperature 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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