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

doi:10.1016/0009-2614(94)00508-7

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

SCI - Chemistry

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	493-500
Number of pages	8
Journal	Chemical Physics Letters
Volume	223
Issue number	5-6
DOIs	https://doi.org/10.1016/0009-2614(94)00508-7
Publication status	Published - 1994 Jul 1

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/0009-2614(94)00508-7

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

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.",

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T1 - Diffuse reflectance laser photolysis study on triplet complex between aromatics and Tl+ included in Tl+-exchanged X-type zeolite

AU - Hashimoto, Shuichi

AU - Fukazawa, Norimasa

AU - Fukumura, Hiroshi

AU - Masuhara, Hiroshi

PY - 1994/7/1

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N2 - 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.

AB - 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.

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