Emergence of practical fluorescence in a confined space of nanoporous silica: Significantly enhanced quantum yields of a conjugated molecule

Kosei Hayashi; Yasuto Fujimaki; Kentaro Mishiba; Hiroto Watanabe; Hiroaki Imai

doi:10.1039/d1cc05935a

Emergence of practical fluorescence in a confined space of nanoporous silica: Significantly enhanced quantum yields of a conjugated molecule

Kosei Hayashi, Yasuto Fujimaki, Kentaro Mishiba, Hiroto Watanabe, Hiroaki Imai

Department of Applied Chemistry

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

Abstract

The fluorescence of benzanthrone, which is a conjugated molecule bearing a carbonyl group, is activated by confinement in a pore with a diameter close to the molecular size. An intense emission originating from the aromatic character π-π∗ transition is achieved through suppression of the nonradiative n-π∗ transition by strong hydrogen bonding between carbonyl groups and silanol groups with a micropore-filling effect in the nanospace.

Original language	English
Pages (from-to)	13150-13153
Number of pages	4
Journal	Chemical Communications
Volume	57
Issue number	97
DOIs	https://doi.org/10.1039/d1cc05935a
Publication status	Published - 2021 Dec 18

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/d1cc05935a

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Emergence of practical fluorescence in a confined space of nanoporous silica : Significantly enhanced quantum yields of a conjugated molecule. / Hayashi, Kosei; Fujimaki, Yasuto; Mishiba, Kentaro; Watanabe, Hiroto; Imai, Hiroaki.

In: Chemical Communications, Vol. 57, No. 97, 18.12.2021, p. 13150-13153.

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

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Emergence of practical fluorescence in a confined space of nanoporous silica: Significantly enhanced quantum yields of a conjugated molecule

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