FORMATION OF O(P-3[J]) PHOTOFRAGMENTS FROM THE HARTLEY BAND PHOTODISSOCIATION OF OZONE AT 226-NM

被引：65

作者：

KINUGAWA, T ^{[1
]}

SATO, T ^{[1
]}

ARIKAWA, T ^{[1
]}

MATSUMI, Y ^{[1
]}

KAWASAKI, M ^{[1
]}

机构：

[1] HOKKAIDO UNIV,APPL ELECT RES INST,SAPPORO,HOKKAIDO 060,JAPAN

来源：

JOURNAL OF CHEMICAL PHYSICS | 1990年 / 93卷 / 05期

关键词：

D O I：

10.1063/1.458862

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photodissociation of ozone at 226 nm is studied for O 3→O2 (X3 Σg-) + O(2p3Pj) by probing O(3Pj) atomic photofragments with a resonance-enhanced multiphoton ionization method. Angular and kinetic energy distributions are determined by measuring time-of-flight spectra as a function of the angle between the polarization vector of the dissociation laser and the detector axis. The Doppler width of O( 3Pj) photofragments is also measured. The translational energy distribution is well represented by assuming the formation of vibrationally excited O2 molecules with an average vibrational quantum number of 12. The anisotropy parameter β for the angular distribution is found to be 0.7 ± 0.1. The predissociation dynamics from the photoprepared O3(1B2) state to the repulsive potential surface is discussed. © 1990 American Institute of Physics.

引用

页码：3289 / 3294

页数：6