Comparison of Gas Sorption Properties of Neutral and Anionic Metal–Organic Frameworks Prepared from the Same Building Blocks but in Different Solvent Systems
作者:Myung‐Ho Choi、Hye Jeong Park、Dae Ho Hong、Myunghyun Paik Suh
DOI:10.1002/chem.201303086
日期:2013.12.16
Two different 3D porous metal–organicframeworks, [Zn4O(NTN)2]⋅10 DMA⋅7 H2O (SNU‐150) and [Zn5(NTN)4(DEF)2][NH2(C2H5)2]2⋅8 DEF⋅6 H2O (SNU‐151), are synthesized from the same metal and organic buildingblocks but in differentsolventsystems, specifically, in the absence and the presence of a small amount of acid. SNU‐150 is a doubly interpenetrated neutralframework, whereas SNU‐151 is a non‐interpenetrated
两种不同的3D多孔金属-有机骨架[Zn 4 O(NTN)2 ]⋅10DMA⋅7H 2 O(SNU‐150)和[Zn 5(NTN)4(DEF)2 ] [NH 2(C 2 ħ 5)2 ] 2 ⋅8DEF⋅6ħ 2 O(SNU-151),由相同的金属和有机积木但在不同的溶剂体系合成,具体地,在不存在和酸的少量的存在。SNU‐150是一个双重互穿的中性框架,而SNU‐151是一种不渗透的阴离子骨架,在孔中含有二乙铵阳离子。在去溶剂化的SNU‐150'(BET:1852 m 2 g -1)和SNU中,N 2,H 2,CO 2和CH 4的气体吸附能力以及N 2和CH 4的CO 2吸附选择性的比较‐151'(BET:1563 m 2 g -1)样品表明,带电荷的框架尽管表面积较小且框架结构不同,但在气体存储和气体分离方面优于中性框架。