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Mechanical and thermal stimuli-induced release of toluene included in luminescent crystals as one-dimensional solvent channels

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Title: Mechanical and thermal stimuli-induced release of toluene included in luminescent crystals as one-dimensional solvent channels
Authors: Sagara, Yoshimitsu Browse this author
Takahashi, Kiyonori Browse this author →KAKEN DB
Nakamura, Takayoshi Browse this author →KAKEN DB
Tamaoki, Nobuyuki Browse this author →KAKEN DB
Issue Date: 7-Aug-2020
Publisher: Royal Society of Chemistry
Journal Title: Journal of materials chemistry C
Volume: 8
Issue: 29
Start Page: 10039
End Page: 10046
Publisher DOI: 10.1039/d0tc02473b
Abstract: Luminescent materials that change their photophysical properties and molecular arrangement in response to external stimuli have attracted attention because of the potential application in sensors, memory, security inks, and informational displays. The combination of external stimuli-responsive luminescence with the release of volatile molecules would give more sophisticated photofunctional materials. Herein we discuss a 9,10-bis(phenylethynyl)anthracene derivative that formed green-emissive crystals containing one-dimensional toluene channels. Amide groups of the compounds formed linear hydrogen-bonds in the crystals. Thermal treatment resulted in a phase transition to another crystalline state with the release of the guest toluene molecules. However, little alteration in the photoluminescent properties occurred during the transition. Mechanical stimuli led to the release of volatile molecules along with an emission colour change with a transition from the crystalline to an amorphous phase. Infrared spectroscopy showed that linear hydrogen bonds remained after a thermal treatment-induced phase transition, whereas mechanical stimuli disturbed them.
Type: article (author version)
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 玉置 信之

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