Gas-Phase Association Reactions of Hydroxide, Methoxide, Ethoxide and Their Deuterated Analogs

January 21, 2000

Journal Article

Gas-Phase Association Reactions of Hydroxide, Methoxide, Ethoxide and Their Deuterated Analogs

Abstract

The selected ion flow tub (SIFT) technique is used to study 14 termolecular association reactions of hydroxide-water (OH- + H2O and OD- + D20), methoxide-water (CH3O- + H2O, CH3O- + D2O, CD3O- + H2O, and CD3O- + D2O), methoxide-methanol (CH2O- + CH3OH, CH3O- + CH3OD, CDOH, and CD3O- + CD3OD), and ethoxide-ethanol (CH3CH2O- + CH3CH2OH, CH3CD2O- + CH3CD2OH, CD3CH2O- + CD3CH2OH, and CD3CD2O- + CD3CD2OD) for which the cluster bond dissociatoin energies are similar (~24-30 kcal/mol). The apparent second-order rate coeefficients for association (kIIapp) are measured as a function of helium pressure over the range of 0.25 to 1.2 Torr at 300K.

Revised: September 18, 2002 | Published: January 21, 2000

Citation

Kato S., T.T. Dang, S.E. Barlow, C.H. Depuy, and V.M. Bierbaum. 2000. Gas-Phase Association Reactions of Hydroxide, Methoxide, Ethoxide and Their Deuterated Analogs. International Journal of Mass Spectrometry and Ion Processes 195/196. PNNL-SA-32175.