Photoionization studies of internally reactive small clusters: Van der Waals complexes of 1,3-butadiene with sulfur dioxide
- Brookhaven National Lab., Upton, NY (USA)
Efficiency functions for ions from the title complexes were measured using a photoionization mass spectrometer in which a molecular beam of target complexes, formed by a skimmed and recollimated free jet expansion of 1,3-butadiene + SO{sub 2}, was made to intersect a tunable VUV beam from Brookhaven's 750-MeV electron storage ring. The dissociation energies at 0 K of 1,3-C{sub 4}H{sub 6}{center dot}SO{sub 2} and (1,3-C{sub 4}H{sub 6}{center dot}SO{sub 2}){sup +} were measured to be 3.24 {plus minus} 0.48 and 3.00 {plus minus} 0.68 kcal mol{sup {minus}1}, respectively. For 3-sulfolene, the condensation product, the ionization potential was measured to be 10.073 {plus minus} 0.006 eV, while the appearance potential of its fragment C{sub 4}H{sub 6}{sup +} is 10.076 {plus minus} 0.029 eV, the same within the experimental uncertainty. However, the sulfolene parent ion is unstable with respect to disintegration into butadiene ion and sulfur dioxide by 0.38 {plus minus} 0.03 eV.
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5348820
- Journal Information:
- Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 112:18; ISSN 0002-7863; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
BEAMS
BUTADIENE
CHALCOGENIDES
CHARGED PARTICLES
DIENES
DISSOCIATION ENERGY
ENERGY
HYDROCARBONS
IONIZATION
IONS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
MOLECULAR BEAMS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOIONIZATION
POLYENES
SPECTROMETERS
STORAGE RINGS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES