The laser-induced fluorescence excitation spectrum near \(281 \mathrm{~nm}\) of 1,4-benzodioxan has been studied in a supersonic jet, and dispersed single-vibronic-level fluorescence spectra have been obtained following excitation into 18 different \(S_{1}\) levels. Fundamentals have been determined
Single vibronic level decays of triplet states in a supersonic jet
β Scribed by H.-P. Lutz; H. Bitto; J.Robert Huber
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 433 KB
- Volume
- 155
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Using direct laser excitation S o+T1 the spectroscopy and dynamics of singke vibronic levels of the triplet state T, (nx*, vi, n=O, 1, 2) of propynal (HCCCHO and HCCCDO) were investigated under isolated conditions in a free jet. A design for an optical detection system is presented which is suitable for observing emission decays for up to 200 ps in a jet apparatus.
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Supersonic let hfctnncs and ewthon spccbe oTpropyn,d and propynnl-d, ac rcporlcd. It 1s 41oan that 1nlcr11.11 ronvcrslon of propynal IS pr~~ncally independent of the rovlbroruc levels in rhc 0: trans~uon
Fluorescence polarization of pyrimidine in a supersonic jet has been examined in the absence of an external field with excitation at each of the rotational lines of the various vibronic absorption bands belonging to the S&i transitions. The internal magnetic field which depolarizes the fluorescence
The spectral features of the singlet+triplet transitions detected by phosphorescence excitation can be significantly different from those of the same transitions obtained by multiphoton ionization. The difference between the two spectra are described and discussed for jet-cooled benzaldehyde and ace
We have generated the benzyl radical in a pulsed discharge jet, and measured vibrationally resolved dispersed fluorescence spectra from single vibronic levels (SVL). The vibrational analysis of four SVL dispersed fluorescence spectra, obtained by the excitation of the 0 Β°, 0 + 328 cm -1, 0 + 387 cm