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Details van artikel 20 van 86 gevonden artikelen
| Titel: |
Hetero-binuclear chelates of Mn(II), Co(II) and Cu(II) o-cresolphthalein complexonates with other metal ions |
| Auteur: |
El-Wafa, Samy M. Abu Tawfik, Abdel Razak M. Ismail, Tarek M. A. |
| Verschenen in: |
Journal of coordination chemistry |
| Paginering: | Jaargang 57 (2004) nr. 10 pagina's 813-824 |
| Jaar: |
2004-07-10 |
| Inhoud: |
Heterobinuclear metal chelates of Mn2+, Co2+ or Cu2+ and some transition metal ions with o-cresolphthalein complexone have been prepared and characterized. Elemental analyses are in agreement with proposed formulae. Thermal analyses (TGA and DTA) were used to determine the degradation products; some thermodynamic parameters were calculated. IR and UV-Vis spectra identified the mode of bonding between the metal ions and the ligand as well as its geometry. Magnetic moment determination and ESR spectra of the heterobinuclear complex revealed some antiferromagnetic interaction between the metal ions, which depends mainly on the two metal ions forming the chelate. Electrochemical studies of the complexes [DC-polarography and cyclic voltammetry (CV)] confirmed the existence and the nature of the metal ions in the chelate. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 20 van 86 gevonden artikelen
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