Time-resolved EPR spectra of the triplet excited states of diaminoacridine guests in polar potassium hydrogen phthalate single crystals

Marco Bellinazzi, Antonio Barbon, Bart Kahr, Jason B. Benedict, Marina Brustolon

Research output: Contribution to journalArticlepeer-review

Abstract

Mixed crystals of potassium hydrogen phthalate containing 3,6-diaminoacridine were photoexcited with visible light and the resulting triplet excited states were analyzed by time resolved EPR spectroscopy. Spectra from discrete growth sectors were compared with powders and polycrystalline glasses prepared at various pHs. The data yield the predominant protonation state and orientation of the triplets in each of a pair of growth sectors bounding the positive and negative ends of the polar crystal.

Original languageEnglish (US)
Pages (from-to)379-385
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume8
Issue number3
DOIs
StatePublished - 2006

ASJC Scopus subject areas

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

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