Product vibrational state distributions in the photodissociation of iodine - rare gas clusters

The photodissocn. of I2M van der Waals clusters is studied at several wavelengths above the B state dissocn. limit with M = Ne, Ar, Kr, and Xe. The I2 product vibrational state distributions are obtained by measuring the dispersed B -> X fluorescence and analyzing the resulting spectra; excitation above the B state dissocn. limit leads to significantly different reaction dynamics compared to excitation of the bound levels of the B state studied previously. Among others the recoil energies of the I2 and M fragments are much larger, and the distributions of rovibrational states in the I2 product are much wider in the present expts. The relative translational energy in the I2* and M photodissocn. products is significantly larger than predicted by recent quasi-classical trajectory calcns. The fragment recoil energy does not vary strongly with the excitation wavelength.

Published in:
Journal of physical Chemistry, 91, 10, 2545-2550
Copyright 2003 ACS
AN 1987:186219
CAN 106:186219
Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes
Lab. Chim. Tech.,Ec. Polytech. Fed. Lausanne,Lausanne,Switz. FIELD URL:
written in English.
Photolysis (of iodine-rare gas clusters, product vibrational state distributions in); Helium-group gases Role: USES (Uses) (van der Waals compds. with iodine, photolysis of, product vibrational state distributions in); Energy level (vibrational, in products of dissocn. of iodine-rare gas clusters)

 Record created 2011-02-01, last modified 2018-01-28

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