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A cationic Rh(III) complex that efficiently catalyzes hydrogen isotope exchange in hydrosilanes.
- Source :
-
Journal of the American Chemical Society [J Am Chem Soc] 2010 Dec 01; Vol. 132 (47), pp. 16765-7. Date of Electronic Publication: 2010 Nov 09. - Publication Year :
- 2010
-
Abstract
- The synthesis and structural characterization of a mixed-sandwich (η(5)-C(5)Me(5))Rh(III) complex of the cyclometalated phosphine PMeXyl(2) (Xyl = 2,6-C(6)H(3)Me(2)) with unusual κ(4)-P,C,C',C'' coordination (compound 1-BAr(f); BAr(f) = B(3,5-C(6)H(3)(CF(3))(2))(4)) are reported. A reversible κ(4) to κ(2) change in the binding of the chelating phosphine in cation 1(+) induced by dihydrogen and hydrosilanes triggers a highly efficient Si-H/Si-D (or Si-T) exchange applicable to a wide range of hydrosilanes. Catalysis can be carried out in an organic solvent solution or without solvent, with catalyst loadings as low as 0.001 mol %, and the catalyst may be recycled a number of times.
Details
- Language :
- English
- ISSN :
- 1520-5126
- Volume :
- 132
- Issue :
- 47
- Database :
- MEDLINE
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 21062088
- Full Text :
- https://doi.org/10.1021/ja108521b