Photochemistry and C-H bond activation reactivity of (HBPz*{sub 3})Rh(CO){sub 2} (Pz* = 3,5-dimethylpyrazolyl) in hydrocarbon solution
- Binghamton Univ., NY (United States)
Two electronically excited states with very different reactivities are implicated in the photochemistry of the highly effective C-H bond activating (HBPz*{sub 3})Rh(CO){sub 2} complex in room-temperature n-pentane solution. Unusually, the lower energy level is relatively prominent and an {eta}{sup 3} {yields} {eta}{sup 2} ligand dechelation mechanism is invoked, analogous to the thermal process in this complex. In contrast, the upper energy excited state gives rise to extremely efficient C-H bond activation ({phi}{sub CH} = 0.34 at 313 nm) and this suggests that CO dissociation is the initial step in the oxidative addition mechanism.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-89ER14039
- OSTI ID:
- 75653
- Journal Information:
- Inorganic Chemistry, Vol. 34, Issue 2; Other Information: PBD: 18 Jan 1995
- Country of Publication:
- United States
- Language:
- English
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