TY - JOUR
T1 - Competition between Arene–Perfluoroarene and Charge-Transfer Interactions in Organic Light-Harvesting Systems
AU - Sun, Yanqiu
AU - Lei, Yilong
AU - Liao, Liangsheng
AU - Hu, Wenping
N1 - Funding Information:
This work was supported financially by the Ministry of Science and Technology of China (2016YFB04001100, 2013CB933403, 2013CB933504), the National Natural Science Foundation of China (91222203, 91233205, 91433115, 51303185, 21473222), and the Chinese Academy of Sciences (XDB12030300).
PY - 2017/8/21
Y1 - 2017/8/21
N2 - Two typical types of luminescent organic cocrystals comprising pyrene–octafluoronaphthalene (pyrene–OFN) and pyrene–1,2,4,5-tetracyanobezene (pyrene–TCNB) were developed by a simple supramolecular assembly strategy. The cocrystals exhibit distinct optical properties because of their different intermolecular interaction modes; that is, arene–perfluoroarene (AP) and charge-transfer (CT) interactions. Unexpectedly, a pyrene–TCNB system with strong CT interactions was incorporated into a pyrene–OFN host as a robust guest to generate white-light emission (WLE). In the supramolecular cocrystal system, an efficient energy-transfer process from pyrene–OFN to pyrene–TCNB occurred because of the well-matched spectra of the constituents and a desirable energy donor/acceptor (D/A) distance. The present competitive intermolecular interaction strategy could be applied to the fabrication of more complicated organic light-harvesting systems.
AB - Two typical types of luminescent organic cocrystals comprising pyrene–octafluoronaphthalene (pyrene–OFN) and pyrene–1,2,4,5-tetracyanobezene (pyrene–TCNB) were developed by a simple supramolecular assembly strategy. The cocrystals exhibit distinct optical properties because of their different intermolecular interaction modes; that is, arene–perfluoroarene (AP) and charge-transfer (CT) interactions. Unexpectedly, a pyrene–TCNB system with strong CT interactions was incorporated into a pyrene–OFN host as a robust guest to generate white-light emission (WLE). In the supramolecular cocrystal system, an efficient energy-transfer process from pyrene–OFN to pyrene–TCNB occurred because of the well-matched spectra of the constituents and a desirable energy donor/acceptor (D/A) distance. The present competitive intermolecular interaction strategy could be applied to the fabrication of more complicated organic light-harvesting systems.
KW - arene–perfluoroarene complexes
KW - charge-transfer systems
KW - cocrystals
KW - energy transfers
KW - organic light-harvesting systems
UR - http://www.scopus.com/inward/record.url?scp=85019384401&partnerID=8YFLogxK
U2 - 10.1002/anie.201702084
DO - 10.1002/anie.201702084
M3 - Journal article
C2 - 28523729
AN - SCOPUS:85019384401
SN - 1433-7851
VL - 56
SP - 10352
EP - 10356
JO - Angewandte Chemie. International Edition
JF - Angewandte Chemie. International Edition
IS - 35
ER -