Isotope exchange reactions of OH/sup -/ or OD/sup -/ with hydrogen and water

Journal Article · Wed Jul 02 04:00:00 EDT 1980 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00534a019· OSTI ID:7083165

Mautner, M; Lloyd, J R; Hunter, E P; Agosta, W A; Field, F H

Exchange between gaseous hydroxyl ion and hydrogen and water has been investigated by using two mass spectrometers and two modes of ionization. Exchange of OH/sup -/ and D/sub 2/ is a relatively slow reaction (collision efficiency = 2.9 x 10/sup -2/), and its rate constant exhibits a small negative temperature coefficient, k = CT/sup -0/ /sup 7/. The exchange of OD/sup -/ with H/sub 2/ is 30% slower than OH/sup -/ + D/sub 2/, the difference becoming less as the temperature increases. Exchange of OD/sup -/ with H/sub 2/O is fast (collision efficiency approx. 1). Exchange of OD/sup -/ with CH/sub 4/ and i-C/sub 4/H/sub 10/ has also been examined, but these reactions are very slow (k < or = 3 x 10/sup -13/ cm/sup 3//molecule s) and may well be zero.

• Research Organization: Rockefeller Univ., New York, NY
• OSTI ID: 7083165
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 102:14; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
&amp; Isotope Separation
400302 -- Organic Chemistry-- Isotope Effects-- (-1987)
ALKANES
ANIONS
BUTANE
CHARGED PARTICLES
DATA
DEUTERIUM
ELEMENTS
EXPERIMENTAL DATA
HEAVY WATER
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROXIDES
INFORMATION
IONS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
METHANE
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
REACTION KINETICS
STABLE ISOTOPES
TEMPERATURE EFFECTS
WATER