Mechanochromic cyclodextrins.

Sugita, Yuki; Aoki, Daisuke; Tokita, Masatoshi; Otsuka, Hideyuki

Sugita, Yuki; Aoki, Daisuke; Tokita, Masatoshi; Otsuka, Hideyuki.

Affiliation

Sugita Y; Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. daoki@polymer.titech.ac.jp.
Aoki D; Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. daoki@polymer.titech.ac.jp.
Tokita M; JST-PRESTO, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
Otsuka H; Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan. daoki@polymer.titech.ac.jp.

Chem Commun (Camb) ; 58(18): 3067-3070, 2022 Mar 01.

Article in En | MEDLINE | ID: mdl-35166758

ABSTRACT

ABSTRACT

Mechanochromic cyclodextrins (MCDs) that can generate blue radical species, which are exceptionally stable toward atmospheric oxygen and can thus be quantitatively characterized via electron paramagnetic resonance (EPR) spectroscopy, were synthesized. MCDs have a defined structure that consists of a diarylbibenzofuranone skeleton mechanophore sandwiched between two CDs. Grinding tests and EPR measurements of the MCDs revealed their high mechanoresponsiveness, reflecting the inherent rigidity of the CDs and the formation of a supramolecular structure in the bulk.

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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Chem Commun (Camb) Journal subject: QUIMICA Year: 2022 Document type: Article Affiliation country: Japan

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