POLAROGRAPHIC REDUCTION OF THE PHENYL-SUBSTITUTED ETHENES. II. ELECTROCHEMICAL KINETIC PARAMETERS AND MECHANISM IN DIMETHYLFORMAMIDE. Report No. 65

Technical Report · Fri Sep 01 04:00:00 EDT 1961

OSTI ID:4837153

Grodzka, P G; Elving, P J

The polarographic behavior of the five phenyl-substituted ethenes (styrene, stilbene, 1,1-diphenylethylene, triphenylethylene and tetraphenylethylene) at the dropping mercury electrode has been examined in dimethylformamide (DMF) and DMF-water solution containing 0.2 M tetra-n- butylammonium iodide as background electrolyte on the basis of tbo various criteria for reversibility based on direct current polarography. Heterogeneous rate constants on alpha n/sub a/ values were calculated on the basis of the spherical expanding electrode theory. None of the reversibility criteria predictions for the various possible mechanisms are entirely in accord with the experimental results. Although polarographic reduction of the phenyl-substituted ethenes is indicated to occur by processes which involved a change of electrode transfer mechanisms, because of the lack of adequate theoretical bases for such a mechanism change and for the effects of variation in double layer structure on any given mechanism. (auth)

• Research Organization: Michigan. Univ., Ann Arbor
• NSA Number: NSA-16-000095
• OSTI ID: 4837153
• Report Number(s): TID-14097
• Country of Publication: United States
• Language: English

Related Subjects

AMIDES
AMMONIUM COMPOUNDS
BUTYL RADICALS
CHEMISTRY
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ETHYLENE
IODIDES
MEASURED VALUES
MERCURY
METHYL RADICALS
PHENYL RADICALS
POLAROGRAPHY
REACTION KINETICS
REDUCTION
SOLUTIONS
STILBENE
STYRENE
WATER