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First‐Generation Tethered [2.2]Metacyclophanes—Prototypes of Molecular Devices
Author(s) -
Bodwell Graham J.,
Houghton Tom J.,
Kennedy Jason W. J.,
Mannion Michael R.
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199621211
Subject(s) - cyclophane , chemistry , stereochemistry , atom (system on chip) , series (stratigraphy) , crystallography , crystal structure , biology , computer science , paleontology , embedded system
The tether length determines the conformation of [2.2]metacyclophane 1 . The cyclophane with the 13‐atom tether ( n = 11) exists at room temperature as an equilibrium mixture of syn and anti isomers (ca. 5.9:1), whereas the next lower homologue ( n = 10) in this series adopts only the syn conformation and the next higher homologue ( n = 12) solely the anti conformation.

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