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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

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
StatePublished - 1 Jul 1994

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