Confirmation of a large kinetic isotope effect in the low-temperature matrix reaction of diphenylcarbene with toluene

Journal Article · Thu Feb 27 04:00:00 EST 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100277a042· OSTI ID:5973761

Savino, T G; Soundarajan, N; Platz, M S

The reaction of diphenylcarbene with toluene was investigated as a function of temperature. The distribution of products formed in this reaction and the kinetic isotope effects observed (>100 at 77K) are consistent with a triplet carbene mechanism over a wide temperature interval. A very large kinetic isotope effect on the carbene reaction was observed in a frozen matrix of toluene-d/sub 1/ at 77 K. Kinetic isotope effects of this magnitude have not been observed in previous matrix kinetic and chemical studies. This is consistent with a previous interpretation of a matrix EPR kinetic study. 11 references, 2 figures, 3 tables.

• Research Organization: Ohio State Univ., Columbus
• OSTI ID: 5973761
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:5; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400302* -- Organic Chemistry-- Isotope Effects-- (-1987)
ALKYLATED AROMATICS
AROMATICS
CARBENES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
DATA
DEUTERIUM COMPOUNDS
ELECTRON SPIN RESONANCE
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPE EFFECTS
KINETICS
LOW TEMPERATURE
MAGNETIC RESONANCE
MATRIX ISOLATION
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
RADICALS
REACTION KINETICS
RESONANCE
SYNTHESIS
TEMPERATURE DEPENDENCE
TOLUENE