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Mechanoluminescence or Room‐Temperature Phosphorescence: Molecular Packing‐Dependent Emission Response
Author(s) -
Wang Jinfeng,
Chai Zhaofei,
Wang Jiaqiang,
Wang Can,
Han Mengmeng,
Liao Qiuyan,
Huang Arui,
Lin Peixuan,
Li Conggang,
Li Qianqian,
Li Zhen
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201911648
Subject(s) - phosphorescence , triphenylamine , mechanoluminescence , molecule , emission spectrum , photochemistry , materials science , derivative (finance) , crystal (programming language) , solid state , chemistry , phosphor , spectral line , optoelectronics , organic chemistry , optics , fluorescence , physics , computer science , financial economics , economics , programming language , astronomy
Mechanoluminescence (ML) and room‐temperature photophosphorescence (RTP) were achieved in polymorphisms of a triphenylamine derivative with ortho‐substitution. This molecular packing‐dependent emission afforded crucial information to deeply understand the intrinsic mechanism of different emission forms and the possible packing–function relationship. With the incorporation of solid‐state 13 C NMR spectra of single crystals, as well as the analysis of crystal structures, the preferred packing modes for ML and/or RTP were investigated in detail, which can guide the reasonable design of organic molecules with special light‐emission properties.