Synthesis, Characterization, and Reaction Chemistry of (Pentadienyl)molybdenum Carbonyl Complexes
| Autor: | Michael S. Kralik, Jeffrey W. Freeman, John P. Hutchinson, Arnold L. Rheingold, Richard D. Ernst |
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| Rok vydání: | 1996 |
| Předmět: | |
| Zdroj: | Organometallics. 15:551-561 |
| ISSN: | 1520-6041 0276-7333 |
| DOI: | 10.1021/om950565h |
| Popis: | The reaction of Mo(diglyme)(CO)3 with K(2,4-C7H11) leads to an exchange of the two organic ligands, yielding K(diglyme)+Mo(2,4-C7H11)(CO)3-. This has been found to be a convenient precursor to other (pentadienyl)molybdenum carbonyl complexes. Thus, reactions with Hg(CN)2, AgI, and I2 lead respectively to Hg[Mo(2,4-C7H11)(CO)3]2, [Mo(2,4-C7H11)(CO)3]2, and Mo(2,4-C7H11)I(CO)3. On the other hand, reactions with CH3I or C2H5I lead to a coupling reaction in which an acyl fragment, generated from a carbonyl ligand and either the CH3 or C2H5 group, has coupled to both ends of the 2,4-C7H11 ligand, leading to a formal trialkylation of the carbonyl group and formation of an alkoxide complex, which thereafter dimerizes. Additionally, reaction of Mo(2,4-C7H11)(CO)3- with IC2H4I leads to a dimetallic species in which one 2,4-C7H11 ligand has lost two hydrogen atoms, yielding a Mo2(2,4-C7H11)(2,4-C7H9)(CO)5 complex. In this compound, a Mo(2,4-C7H9) unit may be formulated as a molybdenabenzene fragment, which is coord... |
| Databáze: | OpenAIRE |
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