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| Titel: |
Spectroscopic characterization and biological activity of metal complexes with an ONO trifunctionalized hydrazone ligand |
| Auteur: |
El-Tabl, Abdou Saad El-Saied, Fathey A. al-Hakimi, Ahmed Noman |
| Verschenen in: |
Journal of coordination chemistry |
| Paginering: | Jaargang 61 (2008) nr. 15 pagina's 2380-2401 |
| Jaar: |
2008 |
| Inhoud: |
A series of Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), La(III), Ru(III), Hf(IV), Zr(IV) and U(VI) complexes of phenylamino acetoacetylacetone hydrazone have been synthesized and characterized by elemental analyses, IR, UV-Vis, magnetic moments, conductances, thermal analyses (DTA and TGA) and ESR measurements. The IR data show that the ligand is neutral bidentate, monobasic bidentate, monobasic tridentate or dibasic tridentate towards the metal ion. Molar conductances in DMF indicate that the complexes are non-electrolytes. The ESR spectra of solid [(L)(HL)Cu2(NO3)(H2O)]·1/2H2O (10) and [(H2L)Cu(Cl)2(H2O)2] (11) show axial spectra with g∥ > g⊥ > 2.0023 indicating d(x² - y²) ground state with significant covalent bond character. However, [(HL)2Mn2(Cl)2(H2O)4·H2O (13) shows an isotropic spectrum, indicating manganese(II) to be octahedral. Antibacterial and antifungal tests of the ligand and some of its metal complexes revealed that the complexes are more potent bactericides and fungicides than the ligand. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 30 van 71 gevonden artikelen
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