Issue 14, 2021
From the journal:

Dalton Transactions

Two Tb-metal organic frameworks with different metal cluster nodes for C2H2/CO2 separation†

Lizhen Liu, ORCID logo a   Yaozong Chen,a   Zizhu Yao,b   Dinggui Chen,a   Quanjie Lin,b   Zhiwen Fan,b   Zhangjing Zhang, ORCID logo b   Binyi Chen*a  and  Shengchang Xiang ORCID logo *b  

* Corresponding authors

a Key Laboratory of Polymer Materials and Products of Universities in Fujian, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350108, China
E-mail: chenby@fjut.edu.cn

b Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, P. R. China
E-mail: scxiang@fjnu.edu.cn

Abstract

Through regulating the reaction solvent and temperature, two Tb-based metal–organic frameworks, ((CH3)2NH2)2[Tb9(μ3-OH)8(μ2-OH)3(PTB)6]·(DMF)14·(H2O)19 (1) and ((CH3)2NH2)3{[Tb9(μ3-O)2(μ3-OH)12(H2O)6][Tb3(μ3-O)(HCO2)3 (PTB)6]}·(DMF)12·(H2O)7 (2) (H3PTB = pyridine-2,4,6-tribenzoic acid), have been synthesized. Structural analysis showed that the cluster node of 1 is a Tb9 cluster, while 2 contains two different nodes of a Tb3 cluster and a Tb9 cluster, which leads to their different pore structures and may potentially separate C2H2/CO2. Gas adsorption demonstrates that both MOFs can separate C2H2 and CO2, but 2 has a more optimized pore environment than 1 and can exhibit better selective separation of C2H2/CO2.

Graphical abstract: Two Tb-metal organic frameworks with different metal cluster nodes for C2H2/CO2 separation

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Article information

DOI
https://doi.org/10.1039/D1DT00413A
Article type
Paper
Submitted
06 Feb 2021
Accepted
10 Mar 2021
First published
17 Mar 2021

Dalton Trans., 2021,50, 4932-4935

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Two Tb-metal organic frameworks with different metal cluster nodes for C2H2/CO2 separation

L. Liu, Y. Chen, Z. Yao, D. Chen, Q. Lin, Z. Fan, Z. Zhang, B. Chen and S. Xiang, Dalton Trans., 2021, 50, 4932 DOI: 10.1039/D1DT00413A

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