Selective Inclusion of a Hetero-Guest Pair in a Molecular Host: Formation of Stable Charge-Transfer Complexes in Cucurbit[8]uril

Selective Inclusion of a Hetero-Guest Pair in a Molecular Host: Formation of Stable Charge-Transfer Complexes in Cucurbit[8]uril

Two different molecules are selectively included in cucurbit[8]uril to form a stable 1:1:1 ternary complex, which has been characterized by X‐ray crystallography (see picture). The inclusion of a hetero‐guest pair (a pyridinium derivative (blue) and 2,6‐dihydroxynaphthalene (magenta)) in the molecul...

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Veröffentlicht in:Angewandte Chemie International Edition 2001-04, Vol.40 (8), p.1526-1529
Hauptverfasser: Kim, Hee-Joon, Heo, Jungseok, Jeon, Woo Sung, Lee, Eunsung, Kim, Jaheon, Sakamoto, Shigeru, Yamaguchi, Kentaro, Kim, Kimoon
Format: Artikel
Sprache:eng
Schlagworte:
charge transfer
host-guest chemistry
inclusion compounds
structure elucidation
supramolecular chemistry
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Zusammenfassung:Two different molecules are selectively included in cucurbit[8]uril to form a stable 1:1:1 ternary complex, which has been characterized by X‐ray crystallography (see picture). The inclusion of a hetero‐guest pair (a pyridinium derivative (blue) and 2,6‐dihydroxynaphthalene (magenta)) in the molecular host is driven and stabilized by a charge‐transfer interaction between the electron‐rich and electron‐deficient guests.
ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20010417)40:8<1526::AID-ANIE1526>3.0.CO;2-T