Sub-picosecond IR study of the reactive intermediate in an alkane C-H bond activation reaction by CpRh(CO){sub 2}

Journal Article · Mon Aug 03 00:00:00 EDT 1998 · Organometallics

DOI:https://doi.org/10.1021/om980194f· OSTI ID:655372

Asbury, J B; Ghosh, H N; Lian, T ^[1]; Yeston, J S; Bergman, R G ^[2]

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1. Emory Univ., Atlanta, GA (United States). Dept. of Chemistry
2. Lawrence Berkeley National Lab., CA (United States). Chemical Sciences Div.

The reactive intermediate in a cyclohexane C-H bond activation reaction by CpRh(CO){sub 2} has been identified as the cyclohexane solvate {eta}{sup 5}-CpRh(CO)(C{sub 6}H{sub 12}) by sub-picosecond infrared spectroscopy. The experiment is the first direct observation of the reactive monocarbonyl-alkane complex, {eta}{sup 5}-CpRh(CO)-(C{sub 6}H{sub 12}), in room-temperature alkane solution. The results are consistent with the idea that this alkane complex solvate is formed on the pathway to the final C-H oxidative addition product, as suggested for the Cp{sup *} and Tp{sup *} systems.

• Sponsoring Organization: Petroleum Research Fund (United States); National Science Foundation, Washington, DC (United States); USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 655372
• Journal Information: Organometallics, Journal Name: Organometallics Journal Issue: 16 Vol. 17; ISSN ORGND7; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
CHEMICAL ACTIVATION
CHEMICAL BONDS
CYCLOHEXANE
INFRARED SPECTRA
RHODIUM COMPOUNDS
TRANSITION ELEMENT COMPLEXES