TY - JOUR
T1 - Bridged Stilbenes
T2 - AIEgens Designed via a Simple Strategy to Control the Non-radiative Decay Pathway
AU - Iwai, Riki
AU - Suzuki, Satoshi
AU - Sasaki, Shunsuke
AU - Sairi, Amir Sharidan
AU - Igawa, Kazunobu
AU - Suenobu, Tomoyoshi
AU - Morokuma, Keiji
AU - Konishi, Gen ichi
N1 - Funding Information:
I would like to thank Prof. Dr. Katsumi Tokumaru for fruitful discussion. This work is partially supported by the Grant‐in‐Aid for Scientific Research (B) (18H02045), Innovative Areas “π‐System Figuration” (17H05145) and “Soft Crystals” (17H06371), JSPS Fellows (16J10324), JSPS Overseas Research Fellowships, and the Cooperative Research Program “NJRC Mater. & Dev.” from MEXT of Japan. All computational investigations were performed on the computers in Research Center for Computational Science, Okazaki, Japan.
Publisher Copyright:
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/6/22
Y1 - 2020/6/22
N2 - To broaden the application of aggregation-induced emission (AIE) luminogens (AIEgens), the design of novel small-molecular dyes that exhibit high fluorescence quantum yield (Φfl) in the solid state is required. Considering that the mechanism of AIE can be rationalized based on steric avoidance of non-radiative decay pathways, a series of bridged stilbenes was designed, and their non-radiative decay pathways were investigated theoretically. Bridged stilbenes with short alkyl chains exhibited a strong fluorescence emission in solution and in the solid state, while bridged stilbenes with long alkyl chains exhibited AIE. Based on this theoretical prediction, we developed the bridged stilbenes BPST[7] and DPB[7], which demonstrate excellent AIE behavior.
AB - To broaden the application of aggregation-induced emission (AIE) luminogens (AIEgens), the design of novel small-molecular dyes that exhibit high fluorescence quantum yield (Φfl) in the solid state is required. Considering that the mechanism of AIE can be rationalized based on steric avoidance of non-radiative decay pathways, a series of bridged stilbenes was designed, and their non-radiative decay pathways were investigated theoretically. Bridged stilbenes with short alkyl chains exhibited a strong fluorescence emission in solution and in the solid state, while bridged stilbenes with long alkyl chains exhibited AIE. Based on this theoretical prediction, we developed the bridged stilbenes BPST[7] and DPB[7], which demonstrate excellent AIE behavior.
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U2 - 10.1002/anie.202000943
DO - 10.1002/anie.202000943
M3 - Article
C2 - 32119188
AN - SCOPUS:85082957935
SN - 1433-7851
VL - 59
SP - 10566
EP - 10573
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 26
ER -