Polymorphism of [6]Cycloparaphenylene for Packing Structure-dependent Host–Guest Interaction
Molecular carbon nanorings, [n]cycloparaphenylenes ([n]CPP), are a unique class of porous molecules with all-benzene 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 he...
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| Veröffentlicht in: | Chemistry letters 2017-06, Vol.46 (6), p.855-857 |
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| container_title | Chemistry letters |
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| creator | Fukushima, Tomohiro Sakamoto, Hirotoshi Tanaka, Kohei Hijikata, Yuh Irle, Stephan Itami, Kenichiro |
| description | Molecular carbon nanorings, [n]cycloparaphenylenes ([n]CPP), are a unique class of porous molecules with all-benzene 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. |
| doi_str_mv | 10.1246/cl.170210 |
| format | Article |
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| fulltext | fulltext |
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| ispartof | Chemistry letters, 2017-06, Vol.46 (6), p.855-857 |
| issn | 0366-7022 1348-0715 |
| language | eng |
| recordid | cdi_proquest_journals_2241361673 |
| source | Oxford University Press Journals All Titles (1996-Current) |
| subjects | Benzene Coordination Asymmetry Crystal structure Entrapment Molecular structure Open channels Organic chemistry Polymorphism |
| title | Polymorphism of [6]Cycloparaphenylene for Packing Structure-dependent Host–Guest Interaction |
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