Selective Inclusion of a Hetero-Guest Pair in a Molecular Host: Formation of Stable Charge-Transfer Complexes in Cucurbit[8]uril
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- 17 April 2001
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 40 (8), 1526-1529
- https://doi.org/10.1002/1521-3773(20010417)40:8<1526::aid-anie1526>3.0.co;2-t
Abstract
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.Keywords
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