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Fabrication of a Robust Lanthanide Metal–Organic Framework as a Multifunctional Material for Fe(III) Detection, CO2 Capture, and Utilization
Crystal Growth & Design ( IF 3.8 ) Pub Date : 2018-04-20 00:00:00 , DOI: 10.1021/acs.cgd.8b00068
Tan Jing 1, 2 , Lian Chen 1 , Feilong Jiang 1 , Yan Yang 3 , Kang Zhou 1 , Muxin Yu 1, 2 , Zhen Cao 1, 2 , Shengchang Li 1, 4 , Maochun Hong 1
Affiliation  

By employing a tricarboxylate ligand 1-(4-carboxybenzyl)-1H-pyrazole-3,5-dicarboxylic acid (H3L), four lanthanide metal–organic frameworks (Ln-MOFs) formulated as {[LnL(H2O)2]·H2O}n (Ln = Eu, 1; Gd, 2; Tb, 3; Dy, 4) have been prepared under hydrothermal conditions. Single-crystal X-ray analyses reveal that compounds 14 are isomorphous and exhibit a three-dimensional network structure featuring a one-dimensional rectangular channel with a size of ca. 7.8 Å × 12.1 Å along the b axis. The framework shows strong stabilities toward high temperature, humid air, water, as well as acid/base environments. Efficient ligand-sensitized characteristic luminescence can be observed in the visible region for Eu- and Tb-based compounds. Detailed property investigation shows that TbL is a promising multifunctional material, which can quantitatively detect Fe(III) ions in the solution mixtures of Fe(II)/Fe(III), selectively adsorb CO2 over CH4, and be applied as catalysts in cyclization reaction with epoxides and CO2.

中文翻译:

坚固耐用的镧系金属有机骨架的制备,可作为多功能材料用于Fe(III)检测,CO 2捕获和利用

通过使用三羧酸盐配体1-(4-羧基苄基)-1 H-吡唑-3,5-二羧酸(H 3 L),将四个镧系元素金属-有机骨架(Ln-MOF)配制成{[LnL(H 2 O )2 ]·H 2 O} n(Ln = Eu,1; Gd,2; Tb,3; Dy,4)是在水热条件下制备的。单晶X-射线分析表明,化合物1 - 4是同晶并表现出三维网状结构设有带大小约的一维矩形通道 沿b的7.8Å×12.1Å轴。该框架在高温,潮湿空气,水以及酸/碱环境中显示出强大的稳定性。对于基于Eu和Tb的化合物,可以在可见光区域观察到有效的配体敏化特性发光。详细的性能研究表明,TbL是一种很有前途的多功能材料,它可以定量检测Fe(II)/ Fe(III)的溶液混合物中的Fe(III)离子,选择性地将CH 2吸附在CH 4上,并用作催化剂。与环氧化物和CO 2的环化反应。
更新日期:2018-04-20
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