Path-selective photoinduced electron transfer (PET) in a membrane-associated system studied by pH-dependent fluorescence

Jialong Liu, Amilra De Silva

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The pH-dependent fluorescence behavior of two regioisomeric 'receptor(1)-spacer(1)-fluorophore-spacer(2)-receptor(2)' systems 1 and 2 in micellar solutions of sodium dodecyl sulfate show that photoinduced electron transfer (PET) only occurs from the amine group connected to the 4-amino position of the aminonaphthalimide fluorophore in both cases. This demonstrates the directing influence of the photogenerated electric field within the aminonaphthalimide excited state on the electron transfer process. Since path-selectivity of PET is also known within the membrane-bound photosynthetic reaction center in bacteria, its origins may be illuminated by the simple experiments described here. (C) 2011 Elsevier B. V. All rights reserved.
Original languageEnglish
Pages (from-to)243-246
Number of pages4
JournalInorganica Chimica Acta
Volume381
Issue number1
Early online date17 Oct 2011
DOIs
Publication statusPublished - 15 Feb 2012

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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