Crystalline Naphthylene Macrocycles Capturing Gaseous Small Molecules in Chiral Nanopores
Crystalline Naphthylene Macrocycles Capturing Gaseous Small Molecules in Chiral Nanopores
复制标题
结晶萘大环化合物在手性纳米孔中捕获气态小分子
DOI：
10.1002/asia.202000876
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Isobe Hiroyuki
中科院分区：
文献类型：
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作者：
Matsuno Taisuke;Fukunaga Kengo;Kobayashi Shuhei;Sarkar Parantap;Sato Sota;Ikeda Takuji;Isobe Hiroyuki
采用一锅法合成了一系列含差向键的手性亚萘基大环化合物[n]环差向亚萘基（[n]CeNAPs）。通过将手性（R）-或（S）-1，1 ′-键嵌入联萘前体，大环化合物被组装成以手性铰链为角的多边形结构。在四种手性[n]CeNAP变体中，[8]具有八个亚萘基面板的CeNAP在晶体中形成坚固的柱状组装体。纳米多孔晶体保持柱状组装结构，即使在去除封装的溶剂分子，和它们的气体吸附行为进行了彻底的研究。气体吸附，包括最先进的原位晶体学分析，揭示了以手性C2排列捕获气态N2分子的纳米孔的精确原子级结构。 以大环作为基本框架，功能性纳米孔可以用于手性小分子排列。
A series of chiral naphthylene macrocycles, [n]cyclo‐epi‐naphthylenes ([n]CeNAPs), possessingepi‐linkages were synthesized by one‐pot macrocyclization. With chiral (R)‐ or (S)‐1,1′‐linkages embedded in binaphthyl precursors, the macrocycles were assembled in polygonal structures possessing chiral hinges as corners. Among four chiral [n]CeNAP variants, [8]CeNAP with eight naphthylene panels formed robust columnar assemblies in crystals. The nanoporous crystals maintained a columnar assembly structure even after the removal of encapsulated solvent molecules, and their gas adsorption behavior was thoroughly investigated. Gas adsorption, including state‐of‐the‐art in situ crystallographic analyses, revealed accurate atomic‐level structures of the nanopores trapping gaseous N2molecules in chiralC2arrangements. With macrocycles as basic frameworks, functional nanopores may be exploited for chiral small‐molecule alignments.