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
Sensitized phosphorescence excitation spectra of biacetyl, benzaldehyde and benzophenone in supersonic jets
β Scribed by Haruo Abe; Shin-ichi Kamei; Naohiko Mikami; Mitsuo Ito
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 394 KB
- Volume
- 109
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
The phosphorescence excitation specrra due to trwsitions to rile Sr (II=') srnres of biacetyl, bcnzaldcb~dc and benzophenone in supersonic jets have been measured for the first time by a novel spectroscopic means tlGlizing sensirizcd phos-p11orcsccnce.
π SIMILAR VOLUMES
Laser-induced excitation spectra of CaAr, SrAr, and BaAr produced in a supersonic jet apparatus were determined m the vicinity of the lowest 'So-'PO resonance lines of the free metal atoms. Spectroscopic constants of the X 'Z + and A %I states of these molecules were determined and compared to those
which includes a self-quenching of benzophenone triplet and n back transfer from the acceptor to the donor. The kinetic rate constants for these IWO proccsscs have been determined along with the triplet lifetimes and yields of para-amino and pun-hydrosybcnzophenone in benzene at infinite dilution.
New details of the dynamics and spectroscopy of trans-stilbene are revealed by picosecond excitation of jet-cooled and collision-free molecules. The fluorescence spectra clearly show the low-frequency torsional modes of the ground state. The time-resolved fluorescence following $1 excitation exhibit
The G0 / u (6 1 P 1 ) -X 0 / g excitation and fluorescence spectra of Hg 2 van der Waals molecules, produced in a pulsed free-jet supersonic expansion beam crossed with a pulsed dye-laser beam, were studied using Ar as the carrier gas. A well-resolved vibrational structure of the G0 / u R X 0 / g ex