Accession Number : ADA265729


Title :   Kinetics of Mediated Electron Transfer Between Viologen Groups in a Self-Assembled Monolayer and Metal Complexes in Solution


Descriptive Note : Technical Report no. 21 Jun 1992-May 1993


Corporate Author : WYOMING UNIV LARAMIE DEPT OF CHEMISTRY


Personal Author(s) : Schneider, Thomas ; Hiley, Shauna ; Buttry, Daniel A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265729.pdf


Report Date : 12 May 1993


Pagination or Media Count : 32


Abstract : Self-assembled monolayers are used in an experimental configuration which allows the extraction of the cross reaction electron exchange rate constant for the electron transfer between a viologen group embedded within the SAM and a metal complex in solution. This cross reaction rate constant is compared with predictions from the Marcus theory using the cross reaction relation and the known self-exchange rate constants for the two reagents. The results reveal that the intrinsic barrier to the electron transfer is relatively unchanged in the SAM, while the rate constant is somewhat depressed due to the long distance over which the electron must transfer, Electrochemistry, Marcus theory, Cross reaction.


Descriptors :   *REACTION KINETICS , *ELECTRON TRANSFER , *METAL COMPLEXES , METALS , CATIONS , LAYERS , ELECTROCHEMISTRY , ELECTRODES , CHEMICAL REACTIONS , BARRIERS , EMBEDDING , OXIDATION REDUCTION REACTIONS , EXCHANGE , RUTHENIUM , GOLD , SALTS , EXTRACTION , ORGANIC COMPOUNDS , CONSTANTS , CONFIGURATIONS , AMMONIA , THERMODYNAMICS , SOLUTIONS(MIXTURES) , PREDICTIONS


Subject Categories : Organic Chemistry
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Solid State Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE