Polymorphism of [6]Cycloparaphenylene for Packing Structure-dependent Host-Guest Interaction

被引：28

作者：

Fukushima, Tomohiro ^{[1
,2
]}

Sakamoto, Hirotoshi ^{[1
,2
]}

Tanaka, Kohei ^{[1
]}

Hijikata, Yuh ^{[2
,3
]}

Irle, Stephan ^{[2
,3
]}

Itami, Kenichiro ^{[1
,2
,3
]}

机构：

[1] Nagoya Univ, JST ERATO, Itami Mol Nanocarbon Project, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[2] Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[3] Nagoya Univ, Inst Transformat Biomol WPI ITbM, Chikusa Ku, Nagoya, Aichi 4648601, Japan

来源：

CHEMISTRY LETTERS | 2017年 / 46卷 / 06期

关键词：

Porous organic molecules; Cycloparaphenylene; Host-guest interaction; CRYSTAL-STRUCTURE; SELECTIVE SYNTHESIS; MOLECULAR-CRYSTALS; CYCLOPARAPHENYLENE; UNIFORM;

D O I：

10.1246/cl.170210

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Molecular carbon nanorings, [n]cycloparaphenylenes ([n]CPP), are a unique class of porous molecules with allbenzene surface. Herein, we report the preparation of polymorphs of [6] CPP crystals for the first time, and the discovery of their packing structure-dependent properties. We found that the herringbone-packed structure is thermodynamically more stable than the tubular-packed structure. We revealed that their host-guest interaction depends on the packing structures of [6] CPP: the tubular-packing affords one-dimensional open channels for weak guest sorption, while the herringbone-packing gives closed cavities for strong guest entrapment. This study exemplifies that the solid-state host-guest chemistry of CPP crystals can be directed by controlling their packing structures.

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收藏

页码：855 / 857

页数：3

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