Disproportionation and combination of ethyl radicals in aqueous solution

Journal Article · Thu Jan 16 04:00:00 EST 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100274a025· OSTI ID:6012090

Bakac, A; Espenson, J H

The ratio k/sub disproportionation//k/sub combination/ (k/sub d//k/sub c/) was determined for ethyl radicals in aqueous solution. Radicals were generated by several independent photochemical and thermal methods: photolysis of (NH/sub 3/)/sub 5/CoO/sub 2/CC/sub 2/H/sub 5//sup 2 +/; photolysis of (C/sub 2/H/sub 5/)/sub 2/CO; reduction of ethyl iodide by photochemically generated (CH/sub 3/)/sub 2/CO/sup -/.; reduction of C/sub 2/H/sub 5/C(CH/sub 3/)/sub 2/OOH by V(H/sub 2/O)/sub 6//sup 2 +/ and by Fe(H/sub 2/O)/sub 6//sup 2 +/. The agreement between different methods is good, yielding k/sub d//k/sub c/ = 0.35 +/- 0.04. The effect of solvent polarity and internal pressure on k/sub d//k/sub c/ is discussed. 21 references, 2 figures, 1 table.

• Research Organization: Iowa State Univ., Ames
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6012090
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:2; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400500* -- Photochemistry
ALKYL RADICALS
AQUEOUS SOLUTIONS
CATALYTIC EFFECTS
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
DISPERSIONS
ETHYL RADICALS
EXPERIMENTAL DATA
INFORMATION
IONS
IRON COMPOUNDS
KINETICS
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
OXIDATION
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
QUANTITY RATIO
RADICALS
REACTION KINETICS
RECOMBINATION
REDUCTION
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS