Effect of charge delocalization on radical ion pair electronic coupling

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

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 (US)
Pages (from-to)244-249
Number of pages6
JournalChemical Physics Letters
Volume404
Issue number4-6
DOIs
StatePublished - Mar 21 2005

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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