Trifluoroacetic acid quenching of naphthalene fluorescence: implications for the mechanism of photoelectrophilic hydrogen exchange

Journal Article · Fri May 23 04:00:00 EDT 1980 · J. Org. Chem.; (United States)

DOI:https://doi.org/10.1021/jo01299a009· OSTI ID:5130189

Bunce, N J; Bergsma, M D

The quenching of naphthalene fluorescence by trifluoroacetic acid involves the dimer of the acid. In isooctane, the activation energy for quenching is essentially zero. The previously observed decrease in quenching efficiency in more polar solvents results from their lower dimer content. Hydrogen isotope exchange in the system naphthalene-trifluoroacetic acid-alkane solvent also involves the dimer of trifluoroacetic acid. 3 tables.

• Research Organization: Univ. of Guelph, Ontario
• OSTI ID: 5130189
• Journal Information: J. Org. Chem.; (United States), Journal Name: J. Org. Chem.; (United States) Vol. 45:11; ISSN JOCEA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400303* -- Organic Chemistry-- Isotope Exchange & Isotope Separation-- (-1987)
ACTIVATION ENERGY
AROMATICS
CHEMICAL REACTIONS
CONDENSED AROMATICS
DEUTERIUM
DIMERS
ENERGY
FLUORESCENCE
HYDROCARBONS
HYDROGEN ISOTOPES
HYDROGEN TRANSFER
ISOTOPES
ISOTOPIC EXCHANGE
LIGHT NUCLEI
LUMINESCENCE
NAPHTHALENE
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
QUENCHING
STABLE ISOTOPES