A Chemosensor with a Paddle Structure Based on a BODIPY Chromophore for Sequential Recognition of Cu and HSO

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2022 May 9

PMID 35530010

Authors

Shengling Li

Duanlin Cao

Zhiyong Hu

Zhichun Li

Xianjiao Meng

Xinghua Han

Wenbing Ma

Affiliations

Soon will be listed here.

Abstract

In this study, a highly selective chemosensor ML based on a BODIPY fluorescent chromophore was synthesized for sequential recognition of Cu and HSO in a CHOH/HO (99 : 1 v/v) system, which contained three recognition sites and its structure characterized by H NMR, C NMR and ESI-HR-MS. The sensor ML showed an obvious "on-off" fluorescence quenching response toward Cu and the ML-Cu complex showed an "off-on" fluorescence enhancement response toward HSO . The detection limit of the sensor ML was 0.36 μM to Cu and 1.4 μM to HSO . In addition, the sensor ML showed a 1 : 3 binding stoichiometry to Cu and the recovery rate of ML-Cu complex identifying HSO could be over 70%. Sensor ML showed remarkable detection ability in a pH range of 4-8.

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