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A Cerium Organic Framework with {Cu2I2} Cluster and {Cu2I2}n Chain Modules: Structure and Fluorescence Sensing Properties.

ABSTRACT: In this work, a copper iodine module bearing a coordination polymer (CP) with a formula of [(Cu2I2)2Ce2(INA)6(DMF)3]·DMF (1, HINA = isonicotinic acid, DMF = N,N'-dimethyl formamide) is presented. The title compound features a three dimensional (3D) structure, in which the {Cu2I2} cluster and {Cu2I2}n chain modules are coordinated by N atoms from a pyridine ring in INA- ligands, while the Ce3+ ions are bridged by the carboxylic groups of INA- ligands. More importantly, compound 1 exhibits an uncommon red fluorescence (FL) with a single emission band maximized at 650 nm belonging to near infrared (NIR) luminescence. The temperature dependent FL measurement was applied to investigate the FL mechanism. Remarkably, 1 could be used as a FL sensor to cysteine and the nitro-bearing explosive molecule of trinitropheno (TNP) with high sensitivity, demonstrating its potential FL sensing applications for biothiol and explosive molecules.

SUBMITTER: Tan B 

PROVIDER: S-EPMC10007347 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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A Cerium Organic Framework with {Cu<sub>2</sub>I<sub>2</sub>} Cluster and {Cu<sub>2</sub>I<sub>2</sub>}<i><sub>n</sub></i> Chain Modules: Structure and Fluorescence Sensing Properties.

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

Sensors (Basel, Switzerland) 20230222 5

In this work, a copper iodine module bearing a coordination polymer (CP) with a formula of [(Cu<sub>2</sub>I<sub>2</sub>)<sub>2</sub>Ce<sub>2</sub>(INA)<sub>6</sub>(DMF)<sub>3</sub>]·DMF (<b>1</b>, HINA = isonicotinic acid, DMF = <i>N</i>,<i>N'</i>-dimethyl formamide) is presented. The title compound features a three dimensional (3D) structure, in which the {Cu<sub>2</sub>I<sub>2</sub>} cluster and {Cu<sub>2</sub>I<sub>2</sub>}<i><sub>n</sub></i> chain modules are coordinated by N atoms from a p  ...[more]

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