VISIBLE LUMINESCENCE STUDIES IN THE INFRARED MULTIPHOTON DISSOCIATIONOF 1,2-DICHLORO-1,1-DIFLUOROETHANE

Authors
PUSHPA KK KUMAR A NAIK PD RAO KA PARTHASARATHY V SARKAR SK MITTAL JP
Citation
Kk. Pushpa et al., VISIBLE LUMINESCENCE STUDIES IN THE INFRARED MULTIPHOTON DISSOCIATIONOF 1,2-DICHLORO-1,1-DIFLUOROETHANE, Chemical physics letters, 279(3-4), 1997, pp. 172-178
Citations number
15
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
279
Issue
3-4
Year of publication
1997
Pages
172 - 178
Database
ISI
SICI code
0009-2614(1997)279:3-4<172:VLSITI>2.0.ZU;2-U
Abstract
A strong visible luminescence was observed in the CO2 laser induced in frared multiphoton dissociation of 1,2-dichloro-1,1-difluoroethane. Th e emission observed between 350-750 nm is attributed to electronically excited carbene CF2Cl-(C) double over dot H. The temporal profile of this luminescence was studied as a function of laser pulse duration, p ulse energy, excitation frequency and substrate pressure. A suitable d issociation mechanism is presented considering various channels of IRM PD of this molecule. (C) 1997 Elsevier Science B.V.