Title

Thermochemical Isotope Effects II

Alternative Title

CH₃OH-CH₃OD, C₂H₅OH-C₂H₅OD, and H₂O-D₂O in selected solvents

Abstract

Standard heats of solution at 25° have been determined for the isotopic pairs methanol-methanol-d, ethanol-ethanol-d, and water-heavy water in a variety of solvents. In every case, the transfer of the deuterated compound from an inert solvent (in the case of water, from the gaseous state) to a hydrogen-bonding solvent is more exothermic than the transfer of the parent compound. The isotope effect on the enthalpy of transfer shows a rough correlation with the difference between the reduced masses of the solvent-solute pair. The isotope effect on the enthalpy of the O-H bond in methanol has also been determined.

Department(s)

Chemistry

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1975 American Chemical Society (ACS), All rights reserved.


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