THE ISOTOPIC EXCHANGE OF GASEOUS HYDROGEN WITH LIQUID ALIPHATIC AMINES. PART II

Journal Article · Wed Aug 01 04:00:00 EDT 1962 · Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.

DOI:https://doi.org/10.1039/jr9620003083· OSTI ID:4783474

Bar-Eli, K; Klein, F S

The rates of exchange of deuterium, deuterium hydride, and tritium hydride with methyl-, dimethyl-, and ethylamine in the presence of lithium, sodium, and potassium amide were measured. An energy of activation of 3.6 kcal/ mole was found for these reactions, to be compared to 7.6 kcal/mole for the exchange with ammonia. As in the exchange of deuterium with water, the exchange with methanol is catalyzed by methoxide ion; the energy of activation is 23.8 kcal/mole, the same as for the exchange with water. The measured rates of exchange, energies of activation, and activities of the different catalysts confirmed the assumption that the catalyst molecule initiates the exchange by a rate-determining association with a deuterium molecule, and that transfer of a hydrogen atom from a solvent molecule to the complex concludes the exchange. (auth)

• Research Organization: Weizmann Inst. of Science, Rehovoth, Israel
• NSA Number: NSA-16-030314
• OSTI ID: 4783474
• Journal Information: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc., Journal Name: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.; ISSN JCSOA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACTIVATION ENERGY
ALKOXY RADICALS
AMIDES
AMINES
CATALYSIS
CHEMISTRY
DEUTERIUM
DEUTERIUM COMPOUNDS
ETHYL RADICALS
GASES
HYDROGEN
ISOTOPIC EXCHANGE
LIQUIDS
LITHIUM COMPOUNDS
METHANOL
METHOXY RADICALS
METHYL RADICALS
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
THERMODYNAMICS
TRITIUM
WATER