TY - JOUR
T1 - Rational Control of Charge Transfer Excitons Toward High-Contrast Reversible Mechanoresponsive Luminescent Switching
AU - Wang, Zongrui
AU - Yu, Fei
AU - Chen, Wangqiao
AU - Wang, Jianfeng
AU - Liu, Jinyu
AU - Yao, Changjiang
AU - Zhao, Jianfeng
AU - Dong, Huanli
AU - Hu, Wenping
AU - Zhang, Qichun
PY - 2020/9/28
Y1 - 2020/9/28
N2 - A practicable strategy to rationally obtain the reversible mechanochromic luminescent (MCL) material with high-contrast ratio (green versus red) has been established. By introducing a volatile third party (small-sized solvent molecules) into the lattice of charge transfer (CT) cocrystal of mixed-stacking 1:1 coronene (Cor.) and napthalenetetracarboxylic diimide (NDI), a noteworthy reconfigurable molecular assembly is ingeniously achieved owing to the loosely packing arrangement as well as weakened intermolecular interactions. Accordingly, the CT excited state, strongly corresponding to the molecular stacking modes, can be intentionally tailored through external stimulus (heating, grinding, or solvent), accompanying distinct changes in photophysical properties. Subsequently, a high-contrast reversible MCL with highly sensitive and good reproducibility is realized and the underlying mechanism is thoroughly revealed.
AB - A practicable strategy to rationally obtain the reversible mechanochromic luminescent (MCL) material with high-contrast ratio (green versus red) has been established. By introducing a volatile third party (small-sized solvent molecules) into the lattice of charge transfer (CT) cocrystal of mixed-stacking 1:1 coronene (Cor.) and napthalenetetracarboxylic diimide (NDI), a noteworthy reconfigurable molecular assembly is ingeniously achieved owing to the loosely packing arrangement as well as weakened intermolecular interactions. Accordingly, the CT excited state, strongly corresponding to the molecular stacking modes, can be intentionally tailored through external stimulus (heating, grinding, or solvent), accompanying distinct changes in photophysical properties. Subsequently, a high-contrast reversible MCL with highly sensitive and good reproducibility is realized and the underlying mechanism is thoroughly revealed.
KW - charge-transfer cocrystals
KW - mechanochromism
KW - molecular rearrangement
KW - reversible fluorescence switching
KW - solvent molecules
KW - charge-transfer cocrystals
KW - mechanochromism
KW - molecular rearrangement
KW - reversible fluorescence switching
KW - solvent molecules
KW - charge-transfer cocrystals
KW - mechanochromism
KW - molecular rearrangement
KW - reversible fluorescence switching
KW - solvent molecules
UR - http://www.scopus.com/inward/record.url?scp=85089289090&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85089289090&origin=recordpage
U2 - 10.1002/anie.202005933
DO - 10.1002/anie.202005933
M3 - RGC 21 - Publication in refereed journal
SN - 1433-7851
VL - 59
SP - 17580
EP - 17586
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 40
ER -