Electron-transfer reactions in coal-model compounds. Annual report, January-December 1987
Oxidation of benzpinacol (BPC) was effected with two Fe(III) (1,10-phenanthroline)3 complexes. The product of these reactions is exclusively benzophenone when 2,6-di-t-butylpyridine is added to the solution. The rates of the electron-transfer process were determined by monitoring the change of the Fe(III) and Fe(II) concentrations by uv-vis spectroscopy. By measuring the rates of the electron transfer as a function of temperature, activation parameters for the electron-transfer process from BPC to Fe(III) (1,10-phenanthroline)3 and to Fe(III) (4,7-diphenyl-1,10-phenanthroline)3 were determined. These data indicate the importance of entropy in potential electron-transfer reactions. Novel bond-cleavage reactions have been observed through the use of added oxygen indicating a new mechanistic pathway for coal-polymer fragmentation.
- Research Organization:
- West Virginia Univ., Morgantown (USA). Dept. of Chemistry
- OSTI ID:
- 5089705
- Report Number(s):
- PB-88-197405/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL
ORGANIC COMPOUNDS
ELECTRON TRANSFER
CATIONS
COAL GASIFICATION
ENTROPY
IRON
OXIDATION
PHENANTHROLINES
PROGRESS REPORT
REACTION KINETICS
SPECTROSCOPY
AROMATICS
AZAARENES
CARBONACEOUS MATERIALS
CHARGED PARTICLES
CHEMICAL REACTIONS
DOCUMENT TYPES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
HETEROCYCLIC COMPOUNDS
IONS
KINETICS
MATERIALS
METALS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
010600* - Coal
Lignite
& Peat- Properties & Composition