American Chemical Society
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A (3,8)-Connected Metal–Organic Framework with Bending Dicarboxylate Linkers for C2H2/CO2 Separation

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journal contribution
posted on 2022-03-08, 13:33 authored by Bao-Yong Zhu, Tao Zhang, Chun-Hui Li, Jian-Wei Cao, Zhu-Qing Zhang, Wei Qi, Guang-Yin Wang, Zhi-Hui Rong, Yu Wang, Kai-Jie Chen
Herein, by replacement of the linear terephthalate linker with the bending 2,5-thiophenedicarboxylate (tdc2–) linker in the typical (3,9)-connected metal–organic framework, with a reduced 8-connected hydroxyl-centered trinuclear cluster, a new (3,8)-connected network, [Ni33-OH)­(tdc)3(tpp)] [DZU-1; tpp = 2,4,6-tris­(4-pyridyl)­pyridine], was synthesized. The modified pore environment enables DZU-1 to selectively adsorb C2H2 over CO2 in an efficient manner.