Mg+-H20 ion-molecule complexes are produced in a pulsed supersonic nozzle cluster source. These weakly bound complexes are mass selected and studied with laser photodissociation spectroscopy in a reflectron time-of-flight mass spectrometer system. An electronic transition assigned as 2B2--}X 2A1 is
Photodissociation of O2+(H2O)
โ Scribed by J.A. Vanderhoff; R.A. Beyer
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 554 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The photodissociation cross section of the weakly bound positive ion clustur Ot(H;?O) has been measured at I5 discrete energes between 1.833 and 2.727 eV. Measurements indicate the cross section increases smoothly from 0.6 to 6 x lo-" cm2 over this eriergy range. These cross section values are the largest reported for a positive ion cluster of atmospheric importance.
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Photofragment vector correlations for photofragments generated through vibrationally mediated photodissociation have been measured for the first time. The results obtained for HzOz, dissociated via the third O-H overtone state, 4u,\_,, implicate torsional motion in the intermediate state as a contri
The fluorescence excitation spectra of Hz0 and DzO have been recorded in the vacuum ultraviolet region, and the technique of polarized photofluorescence excitation spectroscopy has been applied to the photodissociations HzO, DzO -J-IZZJ(~ > 115 nm) -+ H, D + OH, OD (A '23. In the case of HzO, result