Journal article
Redox-Switched Oxidation of Dihydrogen Using a Non-Innocent Ligand
Journal of the American Chemical Society, Vol.130(3), pp.788-789
01/23/2008
Handle:
https://hdl.handle.net/2376/116555
PMID: 18163627
Abstract
Organometallic complexes containing non-innocent ligands of the type Cp*Ir( t BAFPh)(1), where H2 t BAFPh is 2-(2-trifluoromethyl)anilino-4,6-di-tert-butylphenol, were found to activate H2 in a redox-switchable manner. The 16e- complex 1 was inert with respect to H2, CO, as well as conventional basic substrates until oxidation. Oxidation of 16-electron 1 with 1 equiv of Ag+ resulted in ligand-centered oxidation affording salts of [1]+, which were characterized by crystallographically, EPR, and elemental analyses. [1]+ was reduced to 1 in the presence of H2 and the sterically hindered base, 2,6-( t Bu)2C5H3N, via a pathway that is first-order in both metal and dihydrogen. Compound [1]+ forms adducts with MeCN, which inhibits catalysis. The catalytic oxidation of H2 was established by electrochemical methods to be associated with the monocation.
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Details
- Title
- Redox-Switched Oxidation of Dihydrogen Using a Non-Innocent Ligand
- Creators
- Mark R RingenbergSwarna Latha KokatamZachariah M HeidenThomas B Rauchfuss
- Publication Details
- Journal of the American Chemical Society, Vol.130(3), pp.788-789
- Academic Unit
- Chemistry, Department of
- Publisher
- American Chemical Society
- Identifiers
- 99900547952401842
- Language
- English
- Resource Type
- Journal article