0181439 - UFCH-W 20020105 RIV NL eng J - Článek v odborném periodiku
Španěl, Patrik - Wang, T. - Smith, D.
A Selected Ion Flow Tube, SIFT, Study of the Reactions of H3O+, NO+ and O2 + Ions with a Series of Diols.
International Journal of Mass Spectrometry. Roč. 218, - (2002), s. 227-236. ISSN 1387-3806. E-ISSN 1873-2798
Grant CEP: GA ČR GA203/00/0632; GA ČR GA203/02/0737
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: SIFT * diols * proton transfer
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 2.134, rok: 2002

A selected ion flow tube study has been carried out of the reactions of H3O+, NO+ and O-2(+) with 1,2-ethanediol (ethylene glycol), 1,2- and 1,3-propanediol, 1,2-, 1,3- and 1,4-butanediol, 1,5-pentanediol, 1,2-cyclopentanediol and 2-thioethanol (or 2-mercapto-ethanol, HOCH2CH2SH). The reactions of these species with H3O+ ions are assumed to proceed via exothermic proton transfer, their rate coefficients, k(c) being equal to the calculated collisional rate coefficients, k(c). On this basis, the experimental k values for most of the NO+ and O-2(+) reactions are also close to their respective k(c) values, although the k values for three of the NO+ reactions are measurably smaller than their k(c) values. In the H3O+ reactions the protonated parent ions MH+, are always minor product ions. (MH-H2O)(+), resulting from the loss of H2O from the nascent MH+ ions being the major product ions.
Trvalý link: http://hdl.handle.net/11104/0078009