Metal Cyanonitrosyl Complexes: Synthesis and Characterization of Some Novel Mixed-Ligand Cyanonitrosyl {CoNO}8a Complexes of Co(I) with Some Biologically Active Heterocyclic Donors
| Autor: | T. Singh, R. C. Maurya, J. Dubey, G. P. Shukla, B. Shukla |
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| Rok vydání: | 1997 |
| Předmět: |
Thermogravimetric analysis
Denticity Inorganic chemistry chemistry.chemical_element law.invention Inorganic Chemistry Metal chemistry.chemical_compound Benzothiazole chemistry Octahedron law visual_art Polymer chemistry visual_art.visual_art_medium Electron configuration Physical and Theoretical Chemistry Electron paramagnetic resonance Cobalt |
| Zdroj: | Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 27:1467-1482 |
| ISSN: | 1532-2440 0094-5714 |
| Popis: | Novel hexa-coordinate mixed-ligand cyanonitrosyl complexes of cobalt(I) having the general formula K2[Co(NO) (CN)4 (L)], where L = 3-methyl-1-phenyl-2-pyrazoline-5-one, 2,3-dimethyl-1-phenyl-3-pyrazoline-5-one, 4-amino-2,3-dimethyl-1-phenyl-3-pyrazoline-5-one, 2,3-dimethyl-4-dimethylaminome thanesulphona te sodium monohydrate-1-phenyl-3-pyrazoline-5-one, benzothiazole or 2-methylbenzothiazole were prepared by the interaction of K2[Co(NO) (CN)4 (H2O)]. H2O with L in aqueous ethanol solution. The products are characterized by elemental analyses, molar conductances, magnetic measurements, EPR and IR spectral studies and thermogravimetric analysis. Tetragonally distorated octahedral structures are proposed. Infrared spectral studies suggest that all 5-pyrazolone and benzothiazole derivatives act as neutral monodentate ligands which coordinate through the cyclic oxygen and tertiary nitrogen, respectively. Cobalt(I) has a low-spin {CoNO}8 electron configuration in all the complexes. These complexes beh... |
| Databáze: | OpenAIRE |
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