Effect of charge delocalization on radical ion pair electronic coupling

Louise E. Sinks, Emily A. Weiss, Jovan M. Giaimo, Michael R. Wasielewski

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D+. and the magnitude of the electronic coupling between the radicals within D+.-ANI-NI-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.

Original languageEnglish
Pages (from-to)244-249
Number of pages6
JournalChemical Physics Letters
Issue number4-6
Publication statusPublished - Mar 21 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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