Deprotonation- and TICT-triggered ultra-large Stokes shift of aqueous NIR-emissive hydroxylstryryl-pyridinium derivatives

RSC Advances 2026 Open access

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Authors: Xiaolong Lu, Liyu Xiong, Zhihan Zhang, Haolong Yang, En-Min Li, Hefeng Zhang
DOI: 10.1039/d6ra02237e
Cited by: 1
References: 51

Abstract

Hydroxystyryl-pyridinium derivatives serving as fluorescent dyes with water-soluble conjugated skeletons exhibited remarkably large Stokes shifts of up to 404 nm and tunable deep-red to near-infrared (NIR) emissions, which are attributed to the enhanced charge transferring triggered by excited-state deprotonation of the phenol group and twist intramolecular charge transfer.

Fields of Study & Subjects

Photochemistry and Electron Transfer Studies Photochromic and Fluorescence Chemistry Organic Light-Emitting Diodes Research

Publication details

Journal / source
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Volume
16
Issue
22
Pages
19620–19625
Publication date
1 January 2026
Language
EN