Photochemistry of intermolecular C-H bond activation reactions
In the first part of our DOE supported program we have undertaken a detailed study of the photochemistry of several transition-metal organometallic complexes which, on light excitation, activate the C-H bonds of hydrocarbon solvents. Steady-state laser photolysis and low-temperature spectroscopic measurements have been performed on the complexes ({eta}{sup 5}--C{sub 5}R{sub 5})M(CO){sub 2}(M = Rh, Ir; R = H, Me), ({eta}{sup 5}--C{sub 9}R{sub 7})Ir(CO){sub 2}({eta}{sup 5}--C{sub 9}H{sub 7} = idenyl) and ({eta}{sup 5}--C{sub 5}H{sub 5})Re(CO){sub 2}L (L = a pyridine derivative) under dilute solution conditions in deoxygenated alkane and aromatic solvents. In each system the solution photoreaction has been monitored by diode-array UV-visible and FTIR spectroscopy and C-H activation photoproducts have been further characterized by mass spectroscopy. Particular attention has been paid to the wavelength dependencies of these photochemical reactions and the optimum light excitation wavelengths for conversion to the hydrido photoproducts have been identified. 5 refs., 2 figs.
- Research Organization:
- State Univ. of New York, Binghamton, NY (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-89ER14039
- OSTI ID:
- 6663463
- Report Number(s):
- DOE/ER/14039-T1; ON: DE90016095
- Country of Publication:
- United States
- Language:
- English
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