A 3D homochiral metal-organic framework with high selective adsorption property

被引：2

作者：

Zheng, Xiao-Dan ^{[1
]}

Huang, Yong-Liang ^{[2
]}

Tong, Yi-Ping ^{[1
]}

Peng, Chu-Jun ^{[1
]}

机构：

[1] Huizhou Univ, Sch Chem & Mat Engn, Huizhou 516007, Peoples R China

[2] Jinan Univ, Coll Chem & Mat Sci, Guangzhou 510632, Guangdong, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2018年 / 92卷

关键词：

Homochiral metal organic frameworks; Triple-stranded helical chains; Reversible change; Selective adsorption property; SPONTANEOUS RESOLUTION; WATER; SEPARATION; MICROPORES; BINDING; CLUSTER; LIGAND; MOFS;

D O I：

10.1016/j.inoche.2018.04.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel homochiral three-dimensional coordination compound, namely [Eu-3(H(6)Q(3)Cl(4)(NO3)(5)center dot 39H(2)O](n) (1, containing an equal amount of enantiomers) (H6L = cryptand hexacarboxylic acid, see Fig. S1) has been synthesized by the achiral precursor (H6L) via spontaneous resolution. Single-crystal X-ray diffraction analysis of 1 indicates that the compound possesses 1D chiral open channels formed by triple-stranded helical chains, with solvent accessible volume of 23.8%. The crystals of 1 are optically active and opposite Cotton effects can be observed in the circular dichroism (CD) spectra. Compound I can selectively adsorb water over organic solvents (MeOH, EtOH, MeCN, THF) and exhibit reversible water adsorption upon dehydration and hydration, which was indicated by the powder X-ray diffraction, infrared spectra, thermogravitric and elemental analyses.

引用

页码：115 / 120

页数：6

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