期刊
CHEMPHOTOCHEM
卷 2, 期 5, 页码 416-420出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cptc.201700227
关键词
charge-transfer complexes; fluorescence; inclusion crystals; mechanochromism; naphthalenediimides
资金
- JST PRESTO [JPMJPR1414]
- JSPS KAKENHI [JP17H04875, JP17H05161, JP16H01035, JP16H06514]
- Grants-in-Aid for Scientific Research [17H05161] Funding Source: KAKEN
The distinct piezochromic luminescent responses of charge-transfer inclusion crystals, which consist of small aromatic guest molecules with naphthalenediimide derivatives, are reported. Reversible multichromism is observed over the entire visible region in response to high pressure, whereas a weak response to mechanical grinding is evident. High-pressure single-crystal X-ray diffraction analysis and TD-DFT calculations clearly suggest that high compression induces a closer arrangement with a short interfacial distance between small aromatic guest molecules and naphthalenediimide derivatives, which is proposed as the origin of the drastic luminescent color change.
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