Charge Separation in Photoredox Reactions. Final Report Metadata

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  • Main Title Charge Separation in Photoredox Reactions. Final Report


  • Author: Kevan, L.
    Creator Type: Personal


  • Sponsor: United States. Department of Energy. Office of Energy Research.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Energy Research, Washington, DC (United States)


  • Name: University of Houston. Department of Chemistry.
    Place of Publication: Houston, Texas
    Additional Info: Univ. of Houston, Dept. of Chemistry, TX (United States)


  • Creation: 1993-07-15


  • English


  • Content Description: The structural aspects controlling charge separation in molecular photoionization reactions in organized molecular assemblies involving micelles, reverse micelles and vesicles are being studied by optical and electron magnetic resonance techniques including the time domain technique of deuterium electron spin echo modulation (ESEM) and matrix proton electron nuclear double resonance (ENDOR) to measure weak electron-nuclear dipolar interactions. ESEM and matrix ENDOR are particularly well adapted to the study of disordered systems as exemplified by micelles and vesicles. The photoionization yields of alkylphenothiazines in micelles and vesicles have been shown to depend on the alkyl chain length and to correlate with relative distances from the surfactant assembly interface measured by deuterium ESEM and matrix proton ENDOR. The photoionization of alkylmethylviologens versus alkyl chain length has also been studied in vesicles, micelles and reverse micelles. Nitroxide spin probes have been used to study the degree of water penetration into mixed ionic/nonionic poly(ethylene oxide) and cationic/anionic micelles by using ESEM methods and selectively deuterated surfactants. The effect of urea interaction at micellar interfaces on the interface hydration has also been evaluated by studying nitroxide probes with ESEM.
  • Physical Description: 38 p.


  • Keyword: Polyethylene Glycols
  • Keyword: Urea
  • Keyword: Redox Reactions
  • Keyword: Charge Transport
  • Keyword: Progress Report
  • Keyword: Phenothiazines
  • Keyword: Micellar Systems
  • Keyword: Indicators
  • STI Subject Categories: 40 Chemistry
  • Keyword: Photoionization
  • Keyword: Molecular Weight


  • Other Information: PBD: 15 Jul 1993


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Other: DE99001100
  • Report No.: DOE/ER/13848--6
  • Grant Number: FG05-88ER13848
  • DOI: 10.2172/674696
  • Office of Scientific & Technical Information Report Number: 674696
  • Archival Resource Key: ark:/67531/metadc702970


  • Display Note: OSTI as DE99001100