Diffuse reflectance laser photolysis study on triplet complex between aromatics and Tl+ included in Tl+-exchanged X-type zeolite

Shuichi Hashimoto, Norimasa Fukazawa, Hiroshi Fukumura, Hiroshi Masuhara

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20 Citations (Scopus)

Abstract

Triplet-triplet absorption spectra of anthracene, phenanthrene, and naphthalene in thallium ion (Tl+)-exchanged X-type zeolites (T1X) were found to be significantly different from those of the aromatics in sodium ion (Na+)-or cesium ion (Cs+-exchanged zeolites (NaX or CsX); broad and stuctureless spectra with a small red-shift are ascribed to a triplet complex of the aromatics with T1+. The complex formation is considered to be responsible for the enhanced intersystem crossing observed for the aromatics in T1X, and this is in contrast with the observation in CsX where a simple heavy atom-assisted intersystem crossing is operative.

Original languageEnglish
Pages (from-to)493-500
Number of pages8
JournalChemical Physics Letters
Volume223
Issue number5-6
DOIs
Publication statusPublished - 1994 Jul 1

ASJC Scopus subject areas

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

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