A Cerium Organic Framework with {Cu 2 I 2 } Cluster and {Cu 2 I 2 } n Chain Modules: Structure and Fluorescence Sensing Properties

In this work, a copper iodine module bearing a coordination polymer (CP) with a formula of [(Cu I ) Ce (INA) (DMF) ]·DMF ( , HINA = isonicotinic acid, DMF = , -dimethyl formamide) is presented. The title compound features a three dimensional (3D) structure, in which the {Cu I } cluster and {Cu I } c...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-02, Vol.23 (5), p.2420
Main Authors: Tan, Bin, Li, Zi-Wei, Wu, Zhao-Feng, Huang, Xiao-Ying
Format: Article
Language:English
Subjects:
biothiol
Cerium
coordination polymer
Coordination polymers
copper iodine
Ethanol
Fluorescence
Iodine
Ligands
near infrared fluorescence
sensing
Single crystals
Temperature dependence
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Summary:In this work, a copper iodine module bearing a coordination polymer (CP) with a formula of [(Cu I ) Ce (INA) (DMF) ]·DMF ( , HINA = isonicotinic acid, DMF = , -dimethyl formamide) is presented. The title compound features a three dimensional (3D) structure, in which the {Cu I } cluster and {Cu I } chain modules are coordinated by N atoms from a pyridine ring in INA ligands, while the Ce ions are bridged by the carboxylic groups of INA ligands. More importantly, compound 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, 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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23052420