Femtosecond IR studies of alkane C-H bond activation by organometallic compounds. Direct observation of reactive intermediates in room temperature solutions
- Univ. of California, Berkeley, CA (United States)
In this communication, we report the femtosecond time-resolved IR spectroscopic study of the C-H bond activation reaction of Tp{sup *}Rh(CO){sub 2} (Tp{sup *} = HB-Pz{sub 3}{sup *}, Pz{sup *} = 3,5-dimethylpyrazolyl) in room temperature alkane solution. The relatively high C-H activation quantum yield of 30% for this compound has enabled us to detect several very short-lived transient intermediates that are formed during the overall C-H bond activation process. These experiments were performed with our recently completed 30 Hz femtosecond IR spectrometer with 200 fs time resolution. Our experiment represents the first direct observation of the reactive solvated monocarbonyl intermediate species that form in the C-H oxidative addition reactions at room temperature in alkane solution. A summary of our results is shown. 23 refs., 3 figs.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 263147
- Journal Information:
- Journal of the American Chemical Society, Vol. 118, Issue 15; Other Information: PBD: 17 Apr 1996
- Country of Publication:
- United States
- Language:
- English
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