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A Robust Strontium Coordination Polymer with Selective and Sensitive Fluorescence Sensing Ability for Fe3+ Ions.


ABSTRACT: Exploration of sensitive and selective fluorescence sensors towards toxic metal species is of great importance to solve metal pollution issues. In this work, a three-dimensional (3D) strontium coordination polymer of Sr2(tcbpe) (H4tcbpe = 1,1,2,2-tetrakis(4-(4-carboxy-phenyl)phenyl)ethene) has been synthesized and developed as a fluorescent sensor to Fe3+ ions. Sr2(tcbpe) shows a mechanochromic fluorescence with emission shifting from blue of the pristine to green after being ground. Notably, based on a fluorescence quenching mechanism, Sr2(tcbpe) displays a sensitive and selective fluorescent sensing behavior to Fe3+ ions with a detection limit of 0.14 mM. Moreover, Sr2(tcbpe) exhibits high tolerance to water in a wide pH range (pH = 3-13), demonstrating that Sr2(tcbpe) is a potential fluorescent sensor of Fe3+ in water.

SUBMITTER: Li ZW 

PROVIDER: S-EPMC9866177 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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A Robust Strontium Coordination Polymer with Selective and Sensitive Fluorescence Sensing Ability for Fe<sup>3+</sup> Ions.

Li Zi-Wei ZW   Tan Bin B   Wu Zhao-Feng ZF   Huang Xiao-Ying XY  

Materials (Basel, Switzerland) 20230106 2


Exploration of sensitive and selective fluorescence sensors towards toxic metal species is of great importance to solve metal pollution issues. In this work, a three-dimensional (3D) strontium coordination polymer of Sr<sub>2</sub>(tcbpe) (H<sub>4</sub>tcbpe = 1,1,2,2-tetrakis(4-(4-carboxy-phenyl)phenyl)ethene) has been synthesized and developed as a fluorescent sensor to Fe<sup>3+</sup> ions. Sr<sub>2</sub>(tcbpe) shows a mechanochromic fluorescence with emission shifting from blue of the prist  ...[more]

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