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.

中文翻译：

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超分子千层酥：新型脂肪族单磺酸胍氢键框架中的自适应客体包含

在过去三十年中，芳烃磺酸胍主体框架封装多种客体的能力已得到充分证明，已实现了 700 多种包合物。在此，我们报道了基于新的脂肪族主体环己烷单磺酸胍的结晶包合物，其令人惊讶地表现出四种迄今为止未观察到的结构，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。包合物采用磺酸胍片与客体分子交错的层结构，类似于千层糕点。这种非常简单的主体的脂肪族特征，加上更大的结构多样性和适应性，使主体框架能够容纳广泛的客体，并有望扩大有机磺酸胍主体的效用。