A crossed laser-molecular beam study of the photodissociation dynamics of Fe(CO)5 at 193 nm.

Autor: Ray, Urmi, Brandow, Susan L., Bandukwalla, Gulnar, Venkataraman, Bhawani K., Zhang, Zhuangjian, Vernon, Matt
Předmět:
Zdroj: Journal of Chemical Physics; 10/1/1988, Vol. 89 Issue 7, p4092, 10p
Abstrakt: A crossed laser-molecular beam study of the photodissociation mechanism of Fe(CO)5 has been performed at 193 nm where time-of-flight measurements of the primary iron containing photofragments have been recorded under collision free conditions. The center-of-mass velocity distributions derived from the TOF data by the method of moments show that Fe(CO)2 accounts for >99% of all photoproducts formed after absorption of one photon. The only mechanism which quantitatively reproduces the measured velocity distributions is a sequence of three, uncorrelated, statistical CO eliminations. At high photon flux, a second photon can be absorbed by the Fe(CO)2 photofragment which decomposes by an uncorrelated sequential elimination of the remaining two CO ligands. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index