Photolysis of dibenzyl ketones adsorbed on zeolite molecular sieves. Correlation of observed cage effects with carbonyl /sup 13/C enrichment efficiencies
Journal Article
·
· J. Am. Chem. Soc.; (United States)
The photolysis of 3-(4-methylphenyl)-1-phenyl-2-propanone (1) (4-MeDBK) and 1,3-diphenyl-2-propanone-/sup 13/C/sub 2/ (2') (DBK-/sup 13/C) has been carried out on several commonly available zeolites. Dramatic changes in product distributions for 4-MeDBK (1) photolysis were observed on the several zeolites. Percent cage effects were calculated and rationalized in terms of molecular mobility of photogenerated benzyl radicals in the void volumes of zeolites. Percent cage effects correlate well with /sup 13/C-enrichment efficiencies for DBK-/sup 13/C photolysis on these zeolites and, with the yield of a DBK isomer (PMAP), the para-coupling product of the primary geminate radical pair in the photolysis of DBK-/sup 13/C. 25 references, 5 figures, 2 tables.
- Research Organization:
- Columbia Univ., New York, NY
- OSTI ID:
- 5622369
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 107:3; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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· J. Am. Chem. Soc.; (United States)
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OSTI ID:6205989
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ADSORPTION
ADSORPTION ISOTHERMS
ALKYLATED AROMATICS
AROMATICS
ARYL RADICALS
BENZYL RADICALS
CARBON 13
CARBON ISOTOPES
CHEMICAL REACTIONS
CHROMATOGRAPHY
CORRELATIONS
DATA
DATA ANALYSIS
DECOMPOSITION
EFFICIENCY
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTHERM
ISOTOPE SEPARATION
ISOTOPES
KETONES
LIGHT NUCLEI
MATERIALS
MATHEMATICAL MODELS
MINERALS
MOLECULAR STRUCTURE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION INTERMEDIATES
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
STABLE ISOTOPES
SURFACE PROPERTIES
TIME DEPENDENCE
ZEOLITES
400500* -- Photochemistry
ADSORPTION
ADSORPTION ISOTHERMS
ALKYLATED AROMATICS
AROMATICS
ARYL RADICALS
BENZYL RADICALS
CARBON 13
CARBON ISOTOPES
CHEMICAL REACTIONS
CHROMATOGRAPHY
CORRELATIONS
DATA
DATA ANALYSIS
DECOMPOSITION
EFFICIENCY
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTHERM
ISOTOPE SEPARATION
ISOTOPES
KETONES
LIGHT NUCLEI
MATERIALS
MATHEMATICAL MODELS
MINERALS
MOLECULAR STRUCTURE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION INTERMEDIATES
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
STABLE ISOTOPES
SURFACE PROPERTIES
TIME DEPENDENCE
ZEOLITES