| Autor: |
Cross, Warren B., Anderson, James C., Wilson, Claire S. |
| Předmět: |
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| Zdroj: |
Dalton Transactions: An International Journal of Inorganic Chemistry; Feb2009, Vol. 2009 Issue 7, p1201-1205, 5p |
| Abstrakt: |
The previously reported complexes [Mo(NtBu)(O)(2,6-Me2C6H3O)2(py)] (1) and [Mo(NtBu)(O)(2,6-iPr2C6H3O)2(py)] (2) have been shown to contain a nucleophilic oxo ligand. The reaction of 2and tert-butylacetyl chloride gave the novel complex [Mo(NtBu)(2,6-iPr2C6H3O)2(O2CCH2tBu)Cl] (3) in 63% yield as the product of nucleophilic acyl substitution. Complex 1undergoes a clean reaction with triflic anhydride to give the novel complex [{Mo(NtBu)(2,6-Me2C6H3O)2}(μ-O)(μ-OTf)2] (4) in 75% yield. Complex 4appears to be formed from nucleophilic attack of the oxo ligand on triflic anhydride, followed by nucleophilic attack of a second oxo moiety on the cationic intermediate. The solid-state structures of 3and 4have been determined by X-ray crystallography. These are rare examples of nucleophilic oxo ligands bound to a d0transition metal centre. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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