ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Two-photon dissociation of nitrogen dioxide and carbon disulfide at 308 nm has been studied by means of multiphoton ionization of photofragments. The angular distributions of fragments are well represented by a form of 1+β2P2(cos θ)+β4P4(cos θ). Because the intermediate state of NO2 (2B2) generated by the first one-photon process is dissociative, the coefficient β4 for the fourth degree Legendre polynomial is appreciable. The coefficient β4 for CS2 is, however, not appreciable because the intermediate CS2 (1B2) state has a long fluorescence lifetime. The angular distributions not only reveal the symmetry and lifetimes of the two-photon excited states of NO2 and CS2 but also information on the two-photon excitation process of these molecules.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.452714
