TY - JOUR
T1 - Host–Guest Complexation-Induced Aggregation Based on Pyrene-Modified Cyclodextrins for Improved Electronic Circular Dichroism and Circularly Polarized Luminescence
AU - Tu, Chenlin
AU - Wu, Wanhua
AU - Liang, Wenting
AU - Zhang, Dongjing
AU - Xu, Wei
AU - Wan, Shigang
AU - Lu, Wei
AU - Yang, Cheng
N1 - Funding Information:
We acknowledge the support by NSFC (Nos. 92056116, 21871194, 22171194, 21971169, 21873044), STDSP (2021ZYD0052), the Fundamental Research Funds for the Central Universities (20826041D4117). Dr. Dongyan Deng of College of Chemistry, for NMR measurement, and Prof. Peng Wu and Hui Wang of the Analytical & Testing Center, Sichuan University are highly appreciated.
Publisher Copyright:
© 2022 Wiley-VCH GmbH.
PY - 2022/7/18
Y1 - 2022/7/18
N2 - Several γ-cyclodextrin (CD) derivatives mono- or di-substituted by pyrenes at the primary rim of the CD were demonstrated to aggregate into nano-strips in aqueous solutions, with the pyrene moieties interpenetrating into γ-CD cavities. The hydrophobic complexation-induced aggregation provides a rigid chiral environment for the pyrenes and leads to significant electronic circular dichroism (ECD) and circularly polarized luminescence (CPL) activities, giving unprecedently high gabs and glum values up to 4.3×10−2 and 5.3×10−2, respectively. The aggregates lead to excimer emission with high quantum yields and show BCPL and BiCPL up to 338. 6 M−1 cm−1 and 169.3 M−1 cm−1, respectively.
AB - Several γ-cyclodextrin (CD) derivatives mono- or di-substituted by pyrenes at the primary rim of the CD were demonstrated to aggregate into nano-strips in aqueous solutions, with the pyrene moieties interpenetrating into γ-CD cavities. The hydrophobic complexation-induced aggregation provides a rigid chiral environment for the pyrenes and leads to significant electronic circular dichroism (ECD) and circularly polarized luminescence (CPL) activities, giving unprecedently high gabs and glum values up to 4.3×10−2 and 5.3×10−2, respectively. The aggregates lead to excimer emission with high quantum yields and show BCPL and BiCPL up to 338. 6 M−1 cm−1 and 169.3 M−1 cm−1, respectively.
KW - Chiral Aggregation
KW - Chiroptical Properties
KW - Cyclodextrin
KW - Host–Guest Complexation
KW - Pyrene Excimer
UR - http://www.scopus.com/inward/record.url?scp=85130506966&partnerID=8YFLogxK
U2 - 10.1002/anie.202203541
DO - 10.1002/anie.202203541
M3 - Journal article
AN - SCOPUS:85130506966
SN - 1433-7851
VL - 61
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 29
M1 - e202203541
ER -