A ligand conformation preorganization approach to construct a copper–hexacarboxylate framework with a novel topology for selective gas adsorption†,Inorganic Chemistry Frontiers

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A ligand conformation preorganization approach to construct a copper–hexacarboxylate framework with a novel topology for selective gas adsorption†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-11-27 00:00:00 , DOI: 10.1039/c8qi01225c
Yao Wang _{1,

2,

3,

4,

5} , Minghui He _{1,

2,

3,

4,

5} , Xiaoxia Gao _{1,

2,

3,

4,

5} , Xia Wang _{1,

2,

3,

4,

5} , Guohai Xu _{5,

6,

7,

8,

9} , Zhengyi Zhang _{5,

10,

11,

12} , Yabing He _{1,

2,

3,

4,

5}

Affiliation

The development of porous MOFs with novel structures and functional properties is a key research topic in the MOF chemistry and materials field. In this article, by employing a ligand conformation preorganization strategy, we designed a nonplanar methyl-substituted triisophthalate ligand, which was used to successfully construct a copper–hexacarboxylate framework with a novel topological structure. More importantly, the obtained MOF not only exhibits good hydrolytic stability but also shows utility as an adsorbent for efficient separation and purification of C₂H₂ and natural gas under ambient conditions. At ambient temperature and atmospheric pressure, the C₂H₂ and CO₂ uptake capacities reach up to 149.1 and 83.1 cm³ (STP) g⁻¹, while the IAST-predicted C₂H₂/CH₄ (50/50, v/v), C₂H₂/CO₂ (50/50, v/v), and CO₂/CH₄ (50/50, v/v) adsorption selectivities are as high as 22.2, 3.81, and 5.13.

中文翻译：

配体构象预组织方法构建具有选择性气体吸附新拓扑的六羧酸铜框架†

具有新颖的结构和功能特性的多孔MOF的开发是MOF化学和材料领域中的一个关键研究课题。在本文中，通过采用配体构象的预组织策略，我们设计了一种非平面的甲基取代的三间苯二甲酸酯配体，该配体用于成功构建具有新型拓扑结构的铜-六羧酸盐骨架。更重要的是，所获得的MOF不仅显示出良好的水解稳定性，而且还显示出在环境条件下用作有效分离和纯化C ₂ H ₂和天然气的吸附剂的效用。在环境温度和大气压下，C ₂ H ₂和CO ₂吸收能力达到149.1和83.1 cm ³（STP）g ^-1，而IAST预测的C ₂ H ₂ / CH ₄（50/50，v / v），C ₂ H ₂ / CO ₂（50/50 ，v / v）和CO ₂ / CH ₄（50/50，v / v）的吸附选择性高达22.2、3.81和5.13。

更新日期：2018-11-27

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