A chemosensor with a paddle structure based on a BODIPY chromophore for sequential recognition of Cu2+ and HSO3.

Li, Shengling; Cao, Duanlin; Hu, Zhiyong; Li, Zhichun; Meng, Xianjiao; Han, Xinghua; Ma, Wenbing

A chemosensor with a paddle structure based on a BODIPY chromophore for sequential recognition of Cu²⁺ and HSO₃.

Li, Shengling; Cao, Duanlin; Hu, Zhiyong; Li, Zhichun; Meng, Xianjiao; Han, Xinghua; Ma, Wenbing.

Affiliation

Li S; School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China mawenbing@nuc.edu.cn.
Cao D; School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China mawenbing@nuc.edu.cn.
Hu Z; School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China mawenbing@nuc.edu.cn.
Li Z; National Demonstration Center for Experimental Comprehenisve Chemical Engineering Education, North University of China Taiyuan 030051 P. R. China.
Meng X; School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China mawenbing@nuc.edu.cn.
Han X; School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China mawenbing@nuc.edu.cn.
Ma W; School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China mawenbing@nuc.edu.cn.

RSC Adv ; 9(59): 34652-34657, 2019 Oct 23.

Article de En | MEDLINE | ID: mdl-35530010

ABSTRACT

ABSTRACT

In this study, a highly selective chemosensor ML based on a BODIPY fluorescent chromophore was synthesized for sequential recognition of Cu2+ and HSO3 - in a CH3OH/H2O (99 1 v/v) system, which contained three recognition sites and its structure characterized by 1H NMR, 13C NMR and ESI-HR-MS. The sensor ML showed an obvious "on-off" fluorescence quenching response toward Cu2+ and the ML-Cu2+ complex showed an "off-on" fluorescence enhancement response toward HSO3 -. The detection limit of the sensor ML was 0.36 µM to Cu2+ and 1.4 µM to HSO3 -. In addition, the sensor ML showed a 1 3 binding stoichiometry to Cu2+ and the recovery rate of ML-Cu2+ complex identifying HSO3 - could be over 70%. Sensor ML showed remarkable detection ability in a pH range of 4-8.

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Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: RSC Adv Année: 2019 Type de document: Article