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Author(s) -
Chia Shinye,
Cao Jianguo,
Stoddart J. Fraser,
Zink Jeffrey I.
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010702)40:13<2363::aid-anie2363>3.0.co;2-e
Subject(s) - naphthalene , chemistry , luminescence , cover (algebra) , photochemistry , optics , physics , organic chemistry , engineering , mechanical engineering
The cover picture shows linear motor molecules in action on a silicate support. Under the spotlight, tethered threadlike polyether chains (pink) intercepted by electron‐donating naphthalene units (red) doff and don electron‐accepting cyclobis(paraquat‐ p ‐phenylene) girdles (blue). Their risque actions are revealed by the luminescence of the naphthalene units when the girdles are removed. The temporal sequence (left to right) shows the bare thread donning a girdle and then doffing it under the influence of light. The action is attentively monitored by the luminescence spectra; the intensity increases when the girdle is doffed and is quenched when it is donned. More about this process is reported by Zink, Stoddart, and co‐workers on p. 2447 ff.