一种具有{CuI}簇和{CuI}链模块的铈有机骨架：结构和荧光传感性能。

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

机构信息

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China.

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou 350002, China.

出版信息

Sensors (Basel). 2023 Feb 22;23(5):2420. doi: 10.3390/s23052420.

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

在这项工作中，我们提出了一种含有配位聚合物（CP）的铜碘模块，其化学式为[(CuI)Ce(INA)(DMF)]·DMF（, HINA = 异烟酸，DMF =,-二甲基甲酰胺）。标题化合物具有三维（3D）结构，其中{CuI}簇和{CuI}链模块由 INA 配体中吡啶环上的 N 原子配位，而 Ce 离子则由 INA 配体的羧酸基团桥接。更重要的是，化合物表现出不常见的红色荧光（FL），具有单一的发射带，最大发射波长为 650nm，属于近红外（NIR）发光。进行了温度依赖的 FL 测量以研究 FL 机制。值得注意的是，可以用作 FL 传感器来检测半胱氨酸和含硝基的爆炸物分子三硝基苯酚（TNP），具有很高的灵敏度，表明其在生物硫醇和爆炸物分子的 FL 传感应用方面具有潜力。