caa a22 4500 477061079 CHVBK 20180405111400.0 cr unu---uuuuu 170330e19960501xx s 000 0 eng 10.1007/BF00053821 doi (NATIONALLICENCE)springer-10.1007/BF00053821 The atmospheric chemistry of dimethylsulfoxide (DMSO) kinetics and mechanism of the OH+DMSO reaction [Elektronische Daten] [A. Hynes, P. Wine] We have employed a pulsed laser photolysis-pulsed laser induced fluorescence technique to study the kinetics and mechanism of the reaction of OH with dimethylsulfoxide and its deuterated analogue. A rate coefficient of (1.0±0.3)×10-10 cm3 molecule-1 s-1 was obtained ar room temperature. The rate coefficient was independent of pressure over the range 25-700 Torr, showed no dependence on the nature of the buffer gas and showed no kinetic isotope effect. A limited study of the temperature dependence indicated that the reaction displays a negative activation energy. The gas phase ultraviolet absorption spectrum was obtained at room temperature and showed a strong absorption feature in the far ultraviolet. The absolute absorption cross-section at 205 nm, the absorption peak, is (1.0±0.3)×10-17 cm2, where the large uncertainty results from experimental difficulties associated with the low vapor pressure and ‘stickiness' of DMSO. Kluwer Academic Publishers, 1996 hydroxyl radical nationallicence dimethylsulfoxide nationallicence kinetics nationallicence sulfur cycle nationallicence Hynes A. Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, 33149, Miami, FL, U.S.A. aut Wine P. School of Chemistry and Biochemistry, Georgia Institute of Technology, 30332, Atlanta, GA, U.S.A. aut Journal of Atmospheric Chemistry Kluwer Academic Publishers; gopher://gopher.wkap.nl 24/1(1996-05-01), 23-37 0167-7764 24:1<23 1996 24 10874 https://doi.org/10.1007/BF00053821 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00053821 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hynes A. Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, 33149, Miami, FL, U.S.A aut NATIONALLICENCE 700 1- Wine P. School of Chemistry and Biochemistry, Georgia Institute of Technology, 30332, Atlanta, GA, U.S.A aut NATIONALLICENCE 773 0- Journal of Atmospheric Chemistry Kluwer Academic Publishers; gopher://gopher.wkap.nl/ 24/1(1996-05-01), 23-37 0167-7764 24:1<23 1996 24 10874 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer