Diminished solution electron affinities of /sup 13/C- and deuterium-substituted anion radical precursors allow isotopic enrichment

Journal Article · Wed Feb 05 04:00:00 EST 1986 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00263a043· OSTI ID:5826196

Stevenson, G R; Espe, M P; Reiter, R C

Mixtures of carefully measured quantities of naphthalene (NP) and perdeuterated naphthalene (NP-d/sub 8/) were reduced with very deficient amounts of potassium metal in tetrahydrofuran (THF). The relative intensities of the two simultaneously observed ESR spectra show that the equilibrium constant at -120/sup 0/C is 0.26 +/- 0.04 and ..delta.. G/sup 0/, which is identical with the enthalpy change, is 0.41 +/- 0.15 kcal/mol. Analogous results are obtained for /sup 13/C-labelled benzene in THF reduced with K. 12 references, 1 figure.

• Research Organization: Illinois State Univ., Normal
• OSTI ID: 5826196
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 108:3; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400303* -- Organic Chemistry-- Isotope Exchange & Isotope Separation-- (-1987)
ALKALI METALS
AROMATICS
BENZENE
CARBON
CARBON 13
CARBON ISOTOPES
CONDENSED AROMATICS
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
ELECTRON SPIN RESONANCE
ELEMENTS
ENTHALPY
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE SEPARATION
ISOTOPES
LABELLED COMPOUNDS
LIGHT NUCLEI
LOW TEMPERATURE
MAGNETIC RESONANCE
METALS
NAPHTHALENE
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM
RESONANCE
SEPARATION PROCESSES
STABLE ISOTOPES
TETRAHYDROFURAN
THERMODYNAMIC PROPERTIES