Reactions of metallocene niobium(III) isocyanide complexes with oxidizing reagents
New dicyclopentadienylniobium(III) complexes have been made by reducing NbCp2Cl2 (Cp = η5-C5H5, η5-C5H4SiMe3 and η5-C5H3(SiMe3)2) with Na/Hg in the presence of isocyanides CNR (R = Bun, But, Ph and 2,6-Me2C6H3). These compounds are readily oxidized by AgBF4, to give the corresponding niobium(IV) cat...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1989 |
| País: | España |
| Institución: | Universidad de Alcalá (UAH) |
| Repositorio: | e_Buah Biblioteca Digital Universidad de Alcalá |
| Idioma: | inglés |
| OAI Identifier: | oai:ebuah.uah.es:10017/4645 |
| Acceso en línea: | http://hdl.handle.net/10017/4645 https://dx.doi.org/10.1016/0022-328X(89)88007-6 |
| Access Level: | acceso abierto |
| Palabra clave: | Niobium(III) isocyanide complexes Oxidizing reagents Ciencia Química inorgánica Science Chemistry, inorganic |
| Sumario: | New dicyclopentadienylniobium(III) complexes have been made by reducing NbCp2Cl2 (Cp = η5-C5H5, η5-C5H4SiMe3 and η5-C5H3(SiMe3)2) with Na/Hg in the presence of isocyanides CNR (R = Bun, But, Ph and 2,6-Me2C6H3). These compounds are readily oxidized by AgBF4, to give the corresponding niobium(IV) cations [NbCp2ClL]+, by O2 to give peroxoniobium(V) derivatives NbCp2Cl(η2-O2), and by t-butyl hydroperoxide to give the known oxo derivatives NbCp2Cl(O), which can also be made by oxygen transfer from the peroxo compound to triphenylphosphine. |
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