Optical Studies of the Photolysis of CO2at 1470 Aring;

摘要

Experiments have failed to detect radiation from O(1D) at 6300 Aring; in the photolysis of CO2and O2using 1470hyphen;Aring; radiation. From the observed rate of CO formation which had been expected to equal the rate of O(1D) formation and the sensitivity of the optical detection, it is concluded that insignificant amounts of O(1D) exist in photolyzed CO2under these conditions. Measurements on O2irradiated with 1470hyphen;Aring; light imply that O2deactivated O(1D) with a rate coefficient greater than 10minus;12cm3/sec. From an analysis of the photolysis of mixtures of CO+CO2, CO+O2, and CO+O2+CO2, it is determined that O(1D) complexes with CO2(probably from CO3) with a rate coefficient greater than 10minus;12cm3/sec, that CO3+CO is less than 20 as efficient as O(3P) in producing chemiluminescent radiation, and that O(1D) forms CO3at least five times more rapidly that it is deactivated to O(3P) by CO2.