Coherent and incoherent hopping of triplet exciton in quinoxaline-annelated and naphthalene-annelated dimers

Shozo Tero-Kubota, Tatsuya Miyamoto, Kimio Akiyama, Yusaku Ikegami, Shuntaro Mataka, Masashi Tashiro

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Both a quinoxaline-annelated dimer and a naphthalene-annelated dimer showed excimer-type fluorescence spectra. Excimer-type phosphorescence was observed for the quinoxaline dimer, while the phosphorescence of the naphthalene dimer was not much different from that of the monomer type. In contrast, the EPR spectra clearly showed delocalization of the unpaired spins in the two chromophores for both molecules. The present results can be interpreted by the models of coherent supermolecule delocalization of the unpaired spins and incoherent hopping of triplet exciton for the quinoxaline and naphthalene dimers, respectively.

Original languageEnglish
Pages (from-to)314-318
Number of pages5
JournalChemical Physics Letters
Volume249
Issue number5-6
DOIs
Publication statusPublished - 1996 Feb 9

ASJC Scopus subject areas

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

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