Published December 1, 1980
| Version v1
Journal article
Viscosity and temperature dependence of the magnetic isotope effect
Creators
- 1. Department of Chemistry, University of California, Berkeley, California 94720
Description
The 13C enrichment observed in the first order photolytic decomposition of dibenzylketone (1,3-diphenyl-2-propanone) was studied as a function of solvent viscosity and temperature. The isotope effect is due to electron--nuclear hyperfine interactions in the free radical intermediates of the reaction. The results are explained using a continuum diffusion model and a simplified version of the radical pair theory of Chemically Induced Dynamic Nuclear Polarization (CIDNP). The isotope effect is substantially enhanced at intermediate values of viscosity
Additional details
Publishing Information
- Journal Title
- J. Chem. Phys.
- Journal Volume
- 73
- Journal Issue
- 11
- Series
- J. Chem. Phys.
- Journal Page Range
- 5493-5499
- ISSN
- 0021-9606
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12591037
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CARBON 13; ISOTOPE EFFECTS; ISOTOPE SEPARATION; KETONES; NUCLEAR MAGNETIC RESONANCE; PHOTOLYSIS; TEMPERATURE DEPENDENCE; VISCOSITY
- Descriptors DEC
- CARBON ISOTOPES; CHEMICAL REACTIONS; DECOMPOSITION; EVEN-ODD NUCLEI; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; NUCLEI; ORGANIC COMPOUNDS; RESONANCE; SEPARATION PROCESSES; STABLE ISOTOPES