Two New Luminescent Cd(II)-Metal–Organic Frameworks as Bifunctional Chemosensors for Detection of Cations Fe3+, Anions CrO42–, and Cr2O72– in Aqueous Solution,Crystal Growth & Design

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Two New Luminescent Cd(II)-Metal–Organic Frameworks as Bifunctional Chemosensors for Detection of Cations Fe3+, Anions CrO42–, and Cr2O72– in Aqueous Solution
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2016-12-08 00:00:00 , DOI: 10.1021/acs.cgd.6b01197
Shuguang Chen ₁ , Zhenzhen Shi ₁ , Ling Qin ₁ , Hailang Jia ₁ , Hegen Zheng ₁

Affiliation

Two new luminescent Cd(II)-metal–organic frameworks (MOFs), {[Cd(L)(BPDC)]·2H₂O}_n (1) and {[Cd(L)(SDBA)(H₂O)]·0.5H₂O}_n (2) [L = 4,4′-(2,5-bis(methylthio)-1,4-phenylene)dipyridine, H₂BPDC = 4,4′-biphenyldicarboxylic acid, H₂SDBA = 4,4′-sulfonyldibenzoic acid], have been solvothermally synthesized using Cd²⁺ ion and L ligand in the presence of auxiliary ligands and characterized by infrared spectroscopy, elemental analysis, powder X-ray diffraction, and thermogravimetry measurement. Topological analyses reveal that MOF 1 is a 6-connected 3-fold interpenetrating pcu network, and MOF 2 is a new 4-connected 2-fold interpenetrating network. Fluorescence titration, cyclic and anti-interference experiments demonstrate that MOFs 1 and 2 both are excellent probes for Fe³⁺, CrO₄^2–, and Cr₂O₇^2–. The mechanisms of quenching are also deeply studied.

中文翻译：

两个新的发光的Cd（II）-金属-有机框架作为双功能化学传感器，用于检测水溶液中的阳离子Fe ³⁺，CrO ₄^2–和Cr ₂ O ₇^2–。

两个新的发光Cd（II）-金属有机骨架（MOF），{[Cd（L）（BPDC）]·2H ₂ O} _n（1）和{[Cd（L）（SDBA）（H ₂ O） ]·0.5H ₂ O} _n（2）[L = 4,4'-（2,5-双（甲硫基）-1,4-亚苯基）二吡啶，H ₂ BPDC = 4,4'-联苯二甲酸，H ₂ SDBA = 4,4'-磺酰基二苯甲酸]是在辅助配体存在下使用Cd ²⁺离子和L配体溶剂热合成的，并通过红外光谱，元素分析，粉末X射线衍射和热重分析法进行了表征。拓扑分析表明，MOF 1是6连接的3倍互穿PCU网络，和MOF 2是一个新的4-连接的2倍穿网络。荧光滴定，循环和抗干扰实验表明，MOF 1和2都是Fe ³⁺，CrO ₄^2–和Cr ₂ O ₇^2–的优良探针。淬火的机理也得到了深入的研究。

更新日期：2016-12-08

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