Chromium, molybdenum and tungsten carbonyl derivatives of an unusual oxygen tripod ligand
| Autor: | M. Scotti, A. Müller, W. Kläui |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Aqueous solution
Hydride Organic Chemistry Inorganic chemistry chemistry.chemical_element Tungsten Biochemistry Medicinal chemistry Oxygen Inorganic Chemistry Acetic acid chemistry.chemical_compound Chromium chemistry Cyclopentadienyl complex Molybdenum Materials Chemistry Physical and Theoretical Chemistry |
| Zdroj: | Journal of Organometallic Chemistry. 253:45-52 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/0022-328x(83)80107-7 |
| Popis: | (Cyclopentadienyl)tris(diethylphosphito- P )cobaltate(1-), [(C 5 H 5 )Co{P(O)-(OC 2 H 5 ) 2 } 3 ] − , reacts as an oxygen tripod ligand L − with (CH 3 CN) 3 M(CO) 3 (M = Cr, Mo, W) in water to produce the tricarbonyl complexes [LM(CO) 3 ] − . These anions react with N -methyl- N -nitroso- p -toluenesulfonamide to give the nitrosyl compounds [LM(CO) 2 (NO)], (M = Cr, Mo or W). Further substitution with triethylphosphine yields [LMo(CO)(NO)(PEt 3 )]. The air-stable and volatile hydride complex [LMo(CO) 3 H] can be precipitated from an aqueous solution of Na[LMo(CO) 3 ] by addition of acetic acid. Heating the molybdenum hydride [LMo(CO) 3 H] to 150°C in vacuo results in the formation of the metalmetal bonded species [{LMo(CO) 3 } 2 ]; this compound, containing formal seven-coordinate molybdenum(I), is rigid on the NMR time scale at room temperature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|