The Photodissociation Dynamics of ICN at 304.67 nm by State-Selective One Dimensional Translational Fragmentation Spectroscopy
Abstract
The photodissociation dynamics of ICN to CN + I 2P3/2) are investigated by state selective one dimensional photofragmentation translation spectroscopy at 304.67 nm. Translational energy release, laboratory anisotropy factors, and energy distributions are obtained from analysis of the velocity and spatial distributions of the photodissociated iodine atoms. Two velocity distributions peaks are deconvoluted which are found to be separated by 2000 / cm, which is the CN stretching vibration of the CN radical. The high intensity velocity peak is assigned to dissociation to I + CN(X2signa(+) in v=0 (channel I), while the weak lower velocity peak is attributed to dissociation to I + CN(X2sgna(+) in v=1 (channel II). More than 80% of the iodine are produced from channel I and are found to have a relatively small anisotropy parameter, beta, that is independent of velocity, suggesting a mixed absorption polarization leading to rapid dissociation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 09, 1993
- Accession Number
- ADA273329
Entities
People
- Jennifer A. Griffiths
- Mostafa El-Sayed
Organizations
- University of California, Los Angeles