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Discriminating Chiral Supramolecular Motions by Circularly Polarized Luminescence.
Li, Junfeng; Peng, Xuelei; Hou, Chenxi; Shi, Shunan; Ma, Jiamian; Qi, Qi; Lai, Wen-Yong.
Afiliação
  • Li J; State Key Laboratory of Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
  • Peng X; State Key Laboratory of Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
  • Hou C; State Key Laboratory of Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
  • Shi S; State Key Laboratory of Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
  • Ma J; State Key Laboratory of Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
  • Qi Q; School of Chemistry and Chemical Engineering, Southeast University, No.2 SEU Road, Nanjing, 211189, China.
  • Lai WY; State Key Laboratory of Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.
Chemistry ; 28(63): e202202336, 2022 Nov 11.
Article em En | MEDLINE | ID: mdl-35946344
Molecular motions are closely associated with the behaviors and properties of organic materials. However, monitoring molecular motions is challenging. Herein, a chiral supramolecular system consisting of L-/D-phenylalanine (LPF/DPF) as a chiral inducer and an achiral tetraphenylethene derivative (TPEF) as a molecular rotor has been proposed and explored for real-time discriminating the supramolecular motions by the visualization of circularly polarized luminescence (CPL) signal variations. Derived from the ordered molecular motions of TPEF induced by LPF/DPF, highly organized aggregates have been progressively assembled in a controlled manner with differentiated morphologies, including spherical particles, one-dimensional fibers, and floor-shaped supercrystals. Notably, increasing level of ordered aggregates, in turn, led to quenching emissions, while the CPL signals have been dramatically amplified accompanying by a sharp enhancement of luminescence dissymmetry factors (glum ) from nearly 0 to -0.1. The significant amplification of CPL is attributed to the ordered aggregates of supramolecules, leading to the decrease of electric transition dipole moments in supramolecular system. As a result of the chiral supramolecular motions powered by supramolecular crystallization, the supramolecular motions are conveniently discriminated by visual CPL signal variation with an enhancement of glum value from 0 to -0.1 in real time.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Luminescência Tipo de estudo: Prognostic_studies Idioma: En Revista: Chemistry Assunto da revista: QUIMICA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China País de publicação: Alemanha

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Luminescência Tipo de estudo: Prognostic_studies Idioma: En Revista: Chemistry Assunto da revista: QUIMICA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China País de publicação: Alemanha