Photo-controllable Luminescence from Radicals Leading to Ratiometric Emission Switching via Dynamic Intermolecular Coupling

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

13 Scopus Citations
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Author(s)

  • Jia-Ming Jin
  • Wen-Cheng Chen
  • Yingxiao Mu
  • Shaomin Ji
  • Dehua Hu
  • Yanping Huo
  • Hao-Li Zhang

Detail(s)

Original languageEnglish
Article numbere202214281
Journal / PublicationAngewandte Chemie (International Edition)
Volume62
Issue number6
Online published31 Oct 2022
Publication statusPublished - 1 Feb 2023

Link(s)

Abstract

The development of photoinduced luminescent radicals with dynamic emission color is still challenging. Herein we report a novel molecular radical system (TBIQ) that shows photo-controllable luminescence, leading to a wide range of ratiometric color changes via light excitation. The conjugated skeleton of TBIQ is decorated with steric-demanding tertiary butyl groups that enable appropriate intermolecular interaction to make dynamic intermolecular coupling possible for controllable behaviors. We reveal that the helicenic pseudo-planar conformation of TBIQ experiences a planarization process after light excitation, leading to more compactly stacked supermolecules and thus generating radicals via intermolecular charge transfer. The photo-controllable luminescent radical system is employed for a high-level information encryption application. This study may offer unique insight into molecular dynamic motion for optical manufacturing and broaden the scope of smart-responsive materials for advanced applications.

Research Area(s)

  • encryption, luminescence, photoinduced radicals, ratiometric emission, responsive materials

Citation Format(s)

Photo-controllable Luminescence from Radicals Leading to Ratiometric Emission Switching via Dynamic Intermolecular Coupling. / Jin, Jia-Ming; Chen, Wen-Cheng; Tan, Ji-Hua et al.
In: Angewandte Chemie (International Edition), Vol. 62, No. 6, e202214281, 01.02.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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