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 journalArticle

15 Citations (Scopus)

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

Fingerprint

1-Naphthylamine
spin exchange
polarization (charge separation)
aniline
naphthalene
chromophores
atomic energy levels
molecular structure
Ions
density functional theory
Magnetic field effects
Exchange interactions
Chromophores
electronics
magnetic fields
Molecular structure
Density functional theory
ions
interactions

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces
  • Condensed Matter Physics

Cite this

Effect of charge delocalization on radical ion pair electronic coupling. / Sinks, Louise E.; Weiss, Emily A; Giaimo, Jovan M.; Wasielewski, Michael R.

In: Chemical Physics Letters, Vol. 404, No. 4-6, 21.03.2005, p. 244-249.

Research output: Contribution to journalArticle

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