A new stable luminescent Cd(ii) metal–organic framework with fluorescent sensing and selective dye adsorption properties†,Dalton Transactions

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A new stable luminescent Cd(ii) metal–organic framework with fluorescent sensing and selective dye adsorption properties†
Dalton Transactions ( IF 3.5 ) Pub Date : 2018-07-02 00:00:00 , DOI: 10.1039/c8dt01694a
Wen-Quan Tong _{1,

2,

3,

4,

5} , Wei-Ni Liu _{1,

2,

3,

4,

5} , Jian-Guo Cheng _{1,

2,

3,

4,

5} , Peng-Feng Zhang _{1,

2,

3,

4,

5} , Gao-peng Li _{1,

2,

3,

4,

5} , Lei Hou _{1,

2,

3,

4,

5} , Yao-Yu Wang _{1,

2,

3,

4,

5}

Affiliation

A new luminescent metal–organic framework, {[Cd₃(HL)₂(H₂O)₃]·3H₂O·2CH₃CN}_n (1) (H₄L = 1-(3,5-dicarboxylatobenzyl)-3,5-pyrazole dicarboxylic acid), has been synthesized by solvothermal reaction and characterized by infrared spectroscopy, powder X-ray diffraction, thermogravimetry measurements and so on. 1 shows a new trinodal (4,4,6)-connected topology. Importantly, 1 displays intense luminescence in the solid state and high luminescent sensitivity and selectivity for Fe³⁺, CrO₄²⁻ and Cr₂O₇²⁻ ions in aqueous solution, making it a potential probe for detecting these substances. The quenching mechanisms are also further discussed in detail. In addition, further research on the adsorption of dyes shows that 1 can selectively adsorb Congo red dye from other dye molecules.

中文翻译：

具有荧光感应和选择性染料吸附特性的新型稳定发光的Cd（ii）金属-有机骨架†

一种新的发光金属-有机骨架，{[Cd ₃（HL）₂（H ₂ O）₃ ]·3H ₂ O·2CH ₃ CN} _n（1）（H ₄ L = 1-（3,5-二羧甲基苄基） -3，5-吡唑二羧酸）是通过溶剂热反应合成的，并通过红外光谱，粉末X射线衍射，热重分析等进行表征。图1显示了新的三节点（4,4,6）连接的拓扑。重要的是，1表现出强烈的固态发光，对Fe ³⁺，CrO ₄^2-和Cr的发光敏感性和选择性高。水溶液中的₂ O₇^2-离子，使其成为检测这些物质的潜在探针。淬灭机理也将进一步详细讨论。此外，对染料吸附的进一步研究表明1可以从其他染料分子中选择性吸附刚果红染料。

更新日期：2018-07-02

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