Results
Title

Molecular Conformation‐Dependent Mechanoluminescence: Same Mechanical Stimulus but Different Emissive Color over Time.

Authors

Qin, Jianwen; Wang, Jiaqiang; Yang, Jie; Fang, Manman; Li, Zhen; Geng, Peiyao

Abstract

A phenothiazine derivative of FCO‐CzS with changeable mechanoluminescence is reported, which, upon continuous mechanical stimulus, shows mechanoluminescent emission from blue to white and yellow. Careful analysis of the experimental results, coupled with the well‐understood photoluminescence theory, show that the molecular conformation transition of the phenothiazine group from quasi‐axial to quasi‐equatorial is responsible for this dynamic mechanoluminescence effect.

Subjects

MOLECULAR conformation; PHENOTHIAZINE derivatives; PHOTOLUMINESCENCE; INTRAMOLECULAR proton transfer reactions; INTRAMOLECULAR charge transfer; DELAYED fluorescence; ORGANIC semiconductors

Publication

Angewandte Chemie, 2018, Vol 130, Issue 43, p14370

ISSN

0044-8249

Publication type

Academic Journal

DOI

10.1002/ange.201809463