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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A microporous metal-organic framework containing an exceptional four-connecting 4~26~4 topology and a combined effect for highly selective adsorption of CO_2 over N_2
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A microporous metal-organic framework containing an exceptional four-connecting 4~26~4 topology and a combined effect for highly selective adsorption of CO_2 over N_2

机译:微孔金属有机骨架,具有出色的四连接4〜26〜4拓扑结构,并具有在N_2上高选择性吸附CO_2的综合作用

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摘要

Reported here is a new microporous metal-organic framework, namely [Zn _2(L)(btc)(Hbtc)] [NH_2(CH_3)_2] ·(DMF)_2 (H_2O)_4(1), which is synthesized solvo(hydro)thermally by the self-assembly of Zn(NO_3)_2, N~4,N~4-di(pyridin-3-yl)-[1,1′-biphenyl]-4,4′- dicarboxamide (L) and 1,3,5-benzenetricarboxylate acid (H3btc). Its topology can be described as a four-connecting 4~26~4 matrix containing both tetrahedral metal and ligand nodes. Interestingly, such a matrix has the same topology symbol as that observed in the well known sodalite (SOD) net, but the td10 of 434 is different from the td10 of 791 for the SOD net, indicative of an exceptional four-connecting 4~26~4 net. Another outstanding point is the highly selective adsorption of CO _2 over N_2, possibly contributed by a combined effect from the charged skeleton, the existence of functional groups of -CONH- and -COOH in 1.
机译:这里报道了一种新的微孔金属有机骨架,即[Zn _2(L)(btc)(Hbtc)] [NH_2(CH_3)_2]·(DMF)_2(H_2O)_4(1),它是通过溶剂合成的。 Zn(NO_3)_2,N〜4,N〜4-di(pyridin-3-yl)-[1,1'-biphenyl] -4,4'- dicarboxamide(L)的自组装形成水热1,3,5-苯三羧酸(H3btc)。它的拓扑可以描述为包含四面体金属和配体节点的四连接4〜26〜4矩阵。有趣的是,这种矩阵的拓扑符号与在众所周知的方钠石(SOD)网中观察到的拓扑符号相同,但是434的td10与791的td10不同,这表明超四通4〜26 〜4净另一个突出的点是,CO 2在N_2上的选择性吸附能力强,这可能是由于带电骨架的综合作用,1中-CONH-和-COOH官能团的存在所致。

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