Triazine-Modified Color-Responsive Triarylboron/Acridine Fluorescent Probe with Multi-Channel Charge Transfer for Highly Sensitive Fluoride Ion Detection

Molecules, Journal Year: 2025, Volume and Issue: 30(4), P. 879 - 879

Published: Feb. 14, 2025

A novel fluoride ion fluorescent probe is designed by introducing the strong electron-withdrawing triazine groups into triarylboron/acridine conjugation system. The A-D-A' molecular configuration endows this molecule with multiple charge-transfer channels; upon reaction F-, act as primary acceptors within molecule, facilitating charge transfer between acridine units and groups. During detection, changes in triarylboron moiety lead to a significant bathochromic-shift fluorescence emission from green yellow. Theoretical calculations attribute phenomenon reduction S1 state energy level fluorination, resulting pronounced visible color change chromogenic response during detection. Based on intensity varying degrees of F- coordination, detection limit low 10-7 M was determined for TB-1DMAc-2TRZ, demonstrating high sensitivity probe.

Language: Английский

Fluorescence Probes Based on Aminoboranes for the Detection of Fluoride Ions and Nitroaromatics: A Bifunctional Fluorescence Detection Platform

Luminescence, Journal Year: 2025, Volume and Issue: 40(4)

Published: April 1, 2025

ABSTRACT Small‐molecule‐based fluorescent probes have garnered significant attention because of their excellent optical properties. Among these, multi‐stimuli‐responsive molecular been rapidly developed for wide range applications. In this study, we designed a bifunctional probe based on three‐coordinate boron compounds to detect fluoride ions and 4‐nitrophenol. Two NB1 NB2 , containing B‐mesityl 2 acceptors (A) nitrogen‐containing aromatic donors (D), were confirmed via single‐crystal X‐ray diffraction. The donor–acceptor (D–A) structure substantial steric hindrance enable these exhibit efficient fluorescence emission in both liquid solid states. Leveraging the properties boron, two visible rapid response ions, with detection limits 0.41 μM 1.31 . mechanism was corroborated by 19 F NMR spectra. Moreover, owing D–A B–N unit, 4‐nitrophenol, resulting from interrupted charge transfer. These serve as outstanding bifunctionality, stability, high efficiency. Given growing demand probes, possess great potential future sensing

Language: Английский

Feasible Preparation of Naphthalimide-Functionalized Zeolitic Imidazolate Framework-8 for Control, and Fluorescence Detection of Virus: Optimization of Model Study

Journal of Fluorescence, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Language: Английский