Five Lanthanide-Based Metal-Organic Frameworks Built from a pi-Conjugated Ligand with Isophthalate Units Featuring Sensitive Fluorescent Sensing for DMF and Acetone Molecules

Yang Yan; Li Lianzhi; Yang Hua; Sun Lei

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Five Lanthanide-Based Metal-Organic Frameworks Built from a pi-Conjugated Ligand with Isophthalate Units Featuring Sensitive Fluorescent Sensing for DMF and Acetone Molecules

机译：五镧系基金属有机骨架由PI缀合配体构成，具有均匀的苯二甲酸酯单元，具有DMF和丙酮分子的敏感荧光感测

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Five novel lanthanide metal-organic frameworks constructed from a pi-conjugated ligand with tetracarboxylate group, 5,5'-(naphthalene-1,5-diyl)diisophthalic acid, have been synthesized solvothermally. Depend on the single-crystal X-ray diffraction data, the series of compounds exhibit 3D microporous framework architectures with two kinds of 1D open channels, giving the free volume about 36.5% calculated through PLATON. Room-temperature luminescent behaviors in the solid state reveal that compounds 2 (Eu-MOF) and 4 (Tb-MOF) exhibit the characteristic emissions of Eu(III) and Tb(III) benefiting from the excellent antenna effect of the ligand. It is noteworthy that the Eu-MOF, compound 2, has been proven to be treated as a fluorescent switch for DMF with more than 2-fold enhancement and acetone, which triggers a superior luminescence quenching giving an almost 100% quenching efficiency, based on sensitively turned on and turned off effects, respectively.

机译：用溶剂热法合成了五种新型的稀土金属有机骨架，它们是由四羧酸基的pi共轭配体5,5'-（萘-1,5-二酰基）二叉酸构成的。根据单晶X射线衍射数据，该系列化合物呈现出两种一维开放通道的三维微孔骨架结构，通过PLATON计算得到的自由体积约为36.5%。室温下的固态发光行为表明化合物2（Eu-MOF）和4（Tb-MOF）表现出Eu（III）和Tb（III）的特征发射，这得益于配体的优良天线效应。值得注意的是，Eu MOF化合物2已被证明是DMF的荧光开关，具有超过2倍的增强作用和丙酮，其触发优越的发光猝灭，分别基于灵敏的开启和关闭效应，提供几乎100%的猝灭效率。

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《Crystal growth & design》 |2021年第5期|共8页
作者
Yang Yan; Li Lianzhi; Yang Hua; Sun Lei;
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Liaocheng Univ Coll Chem &

Chem Engn Liaocheng 252059 Shandong Peoples R China;

Liaocheng Univ Coll Chem &

Chem Engn Liaocheng 252059 Shandong Peoples R China;

Liaocheng Univ Coll Chem &

Chem Engn Liaocheng 252059 Shandong Peoples R China;

Liaocheng Univ Coll Chem &

Chem Engn Liaocheng 252059 Shandong Peoples R China;

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正文语种 eng
中图分类晶体学;
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5. Luminescent Properties of Lanthanide-Based Metal-Organic Frameworks with Rigid Tritopic Carboxylate Ligands [C] . Hani Nasser Abdelhamid, Magdalena Wilk-Kozubek, Xiaodong Zou Rare Earth Research Conference . 2019

机译：镧系元素 - 有机骨架的发光性能刚性氚型羧酸盐配体
6. Five Lanthanide-Based MetalOrganic Frameworks Built from a Conjugated Ligand with Isophthalate Units Featuring Sensitive Fluorescent Sensing for DMF and Acetone Molecules [O] . -1

机译：基于五种基于镧系元素的金属框架，由缀合配体构成，具有间邻苯二甲酸酯单元，具有DMF和丙酮分子的敏感荧光感测
7. Insertion of Guest Molecules into a Mixed Ligand Metal-Organic Framework via Single-Crystal-to-Single Crystal Guest Exchange [R] . Giri, L, Pesce-Rodriguez, R, Karna, S P, 2014

机译：通过单晶到单晶体客体交换将客体分子插入混合配体金属 - 有机骨架中

Five Lanthanide-Based Metal-Organic Frameworks Built from a pi-Conjugated Ligand with Isophthalate Units Featuring Sensitive Fluorescent Sensing for DMF and Acetone Molecules

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