Accession Number : AD0694575

Title :   FUNDAMENTAL ELECTROCHEMICAL STUDIES OF ADSORPTION, KINETICS, AND EXCITED ELECTRONIC STATES.

Descriptive Note : Final rept. 1 Jan 64-30 Jun 68,

Corporate Author : NORTH CAROLINA UNIV CHAPEL HILL DEPT OF CHEMISTRY

Personal Author(s) : Murray,Royce W. ; Reilley,Charles N.

Report Date : SEP 1969

Pagination or Media Count : 21

Abstract : Application of modern transient techniques to the study of metal complex adsorptions at mercury electrodes has strengthened further the suspected dominating influence of the ligand adsorption properties in the adsorption process. Adsorptions of cadmium iodide, indium(III)thiocyanate, and the organometal phenyl-mercury(II) have been studied. Inhibition of electrode processes by adsorbed species has also been examined for the unusual cases of lead halides (two-dimensional crystallizations) and brucine (simulated optically active electrodes). Extensive development of the field of thin-layer electrochemistry has been made. Design, theoretical characterization, and application of twin working electrode cells have been accomplished, with emphasis on general steady-state current features and application to chemical kinetics (benzidine rearrangement, uranium(V) disproportionation). Single electrode cells have been used in potential scan coulometry and have been modified to alleviate edge diffusion effects (getter electrode). The development of thin-layer cells useful for in situ spectral measurements was also accomplished and a number of applications made (metal acetylacetonate reactions, infrared study of ninhydrin reduction, o-tolidine oxidation, fluorescence). Work in A.C. polarographic instrumentation has produced a high-performance instrument having good signal-to-noise and lacking troublesome tuned amplifier components. A study of acetylacetonate coordination chemistry has revealed a 1:2 complexation with lithium ion in acetonitrile solvent. (Author)

Descriptors :   (*COMPLEX COMPOUNDS, ELECTROCHEMISTRY), (*ELECTRODES, *ADSORPTION), (*ELECTROCHEMISTRY, CHEMICAL REACTIONS), REACTION KINETICS, DISPROPORTIONATION, MERCURY COMPOUNDS, URANIUM, PENTANONES, OXIDATION REDUCTION REACTIONS, FLUORESCENCE, LITHIUM COMPOUNDS, LEAD COMPOUNDS, TOLUIDINES, INDIUM COMPOUNDS, REACTION KINETICS

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE