The Photodissociation Dynamics of ICN at 304.67 nm by State-Selective One Dimensional Translational Fragmentation Spectroscopy
CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY AND BIOCHEMISTRY
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The photodissociation dynamics of ICN to CN I 2P32 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 CNX2signa in v0 channel I, while the weak lower velocity peak is attributed to dissociation to I CNX2sgna in v1 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.
- Inorganic Chemistry
- Physical Chemistry
- Radiation and Nuclear Chemistry
- Atomic and Molecular Physics and Spectroscopy