LASER EXCITED SPECTRA OF THE SINGLET MOLECULAR OXYGEN-IODINE REACTION AND POPULATIONS OF INTERMEDIATE STATES
Loading...
Date
1988
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
As reported in the previous paper the mechanism of dissociation of $1_{2}$ by $O_{2}$ Is poorly known. It is a multi-step process. In order to find the Intermediate states of l2 involved we have systematically explored excitation spectra of the flame with a dye laser pumped by a copper vapour laser. Moreover some high resolution spectra have been obtained in the 810 -830 nm range with a styryl dye pumped by an $Ar^{4}$ laser. From inversion of the excitation spectra we have found that high vibrational levels of the $l_{2}$ ground state until $v \sim 45$ are involved. These vibrtional populations vary with the region of the flame explored. With a frequency doubled dye laser we succeeded to detect a relatively high population of the $A^{\prime}2u$ state through $A^{\prime}2u$ state through $A2u \rightarrow D2g$ excitation. Unfortunately the D2g state is spectroscoplcally too poorly known to obtain relable inversion of the spectra.
Description
Author Institution: Laboratolre de Spectrometrie lonique et Moleculatre