Open AccessRESONANCE ENHANCED MULTIPHOTON INOIZATION STUDIES OF CF2Cl RADICALS BETWEEN 332nm AND 362nm
Author(s) -
Quanxin Li,
Jinian Shu,
Qun Zhang,
Haifeng Xu,
Shulin Yu,
Congxiang Chen,
Xingxiao Ma
Publication year - 1998
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.47.1470
Subject(s) - rydberg formula , atomic physics , radical , rydberg state , quantum defect , ionization , resonance (particle physics) , resonance enhanced multiphoton ionization , spectral line , materials science , physics , photoionization , chemistry , ion , organic chemistry , astronomy , quantum mechanics
The (2+1) resonance-enhanced multiphoton ionization (REMPI) spectra of the CF2Cl radicals, which are generated by a pulsed dc discharge,were investigated between 332 and 362nm.Two new Rydberg states,4s and 4p,were observed and indentified.The observed states and spectroscopic constants include 4s Rydberg state (band origin ν0—0=55371cm-1,ω3′ (CF2 scissors)=523±7cm-1,ω′4 (OPLA,i.e.,out-of-plane bending mode)=734±4cm-1) and 4p Rydberg state (ν0—0=57601.3cm-1,ω3′=552±10cm-1,ω4′=762±12cm-1).The quantum defect values of 4s and 4p Rydberg states were also estimated.It seems that the radical production by a pulsed dc discharge combined with PEMPI technique is a powerful tool to study the electronic state of radicals.