Supramolecular Mille-Feuille: Adaptive Guest Inclusion in a New Aliphatic Guanidinium Monosulfonate Hydrogen-Bonded Framework
Supramolecular Mille-Feuille: Adaptive Guest Inclusion in a New Aliphatic Guanidinium Monosulfonate Hydrogen-Bonded Framework
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DOI：
10.1021/acs.cgd.4c00215
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发表时间：
2024-04-04
影响因子：
3.8
通讯作者：
Ward，Michael D.
中科院分区：
文献类型：
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作者：
Dillon，Alexandra M.;Yusov，Anna;Ward，Michael D.
在过去的三十年里，芳磺酸胍的主体骨架能够包裹广泛的客体的能力已经得到了充分的证明，实现了700多种包合物。在这里，我们报告了基于一种新的脂族主体-环己烷磺酸胍的晶体包合物，它意外地表现出四种迄今未被观察到的结构，如氢键磺酸胍片上方和下方的有机磺酸盐残基的投影拓扑所描述的那样。包合物采用与客体分子交织在一起的磺酸胍片层主题，类似于米勒-费耶糕点。这种极其简单的宿主的脂肪族特征，再加上更大的建筑多样性和适应性，使宿主框架能够容纳广泛的客人，并有望扩大有机磺酸胍宿主的用途。
During the past three decades, the ability of guanidinium arenesulfonate host frameworks to encapsulate a wide range of guests has been amply demonstrated, with more than 700 inclusion compounds realized. Herein, we report crystalline inclusion compounds based on a new aliphatic host, guanidinium cyclohexanemonosulfonate, which surprisingly exhibits four heretofore unobserved architectures, as described by the projection topologies of the organosulfonate residues above and below hydrogen-bonded guanidinium sulfonate sheets. The inclusion compounds adopt a layer motif of guanidinium sulfonate sheets interleaved with guest molecules, resembling a mille-feuille pastry. The aliphatic character of this remarkably simple host, combined with access to greater architectural diversity and adaptability, enables the host framework to accommodate a wide range of guests and promises to expand the utility of guanidinium organosulfonate hosts.