Photoinduzierte und thermische reaktionen der übergangsmetallethylverbindungen CpM(CO)3Et (Cp = η5-cyclopentadienyl; Et = ethyl; M = Mo,W) |
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| Authors: | H.G. Alt M.E. Eichner |
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| Affiliation: | Laboratorium für Anorganische Chemie, Universität Bayreuth, Postfach 3008, D-8580 Bayreuth B.R.D. |
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| Abstract: | In the compounds CpM(CO)3Et (M = Mo, W) the metal-ethyl σ-bond is photolabile. Upon irradiation of a solution of CpM(CO)3Et with UV light mainly [CpM(CO)3]2, CpM(CO)3H, ethane, and ethylene are produced. Formation of CpM(CO)3H is indicative of a β-elimination pathway for the photo-induced degradation. In the presence of trimethylphosphane (L) UV-irradiation of a solution of CpM(CO)3Et leads to the products Cp(CO)(L)2MM-(CO)3Cp, CpM(CO)2(L)Et and CpM(CO)2(L)H, while the thermal reaction produces the propionyl complexes CpM(CO)2(L)(COEt). |
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