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Cover Picture (Angew. Chem. Int. Ed. Engl. 10/1989)
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198912831
Subject(s) - catenane , cover (algebra) , citation , ring (chemistry) , supramolecular chemistry , chemistry , art history , library science , polymer science , crystallography , computer science , art , engineering , crystal structure , organic chemistry , molecule , mechanical engineering
The cover picture shows a computer‐generated space‐filling model ( D. Williams ) of the structure of a highly ordered [2] catenane. This compound could be prepared in a one‐pot synthesis in a yield of 70% (for comparison, use of the high‐dilution technique generally affords yields of around 1%). The initially formed decaoxa[13.13]paracyclophane (drawn in red) acts as a template for generation of cyclobis(paraquat‐ p ‐phenylene) (drawn in blue) in such a way that, after cyclization, the two ring systems are interlocked. This synthetic principle, involving the exploitation of supramolecular structures, should prove to be very useful. Further details on this [2]catenane, its molecular structure, its dynamic behavior in solution, and its electrochemical properties are reported by J. F. Stoddart et al. on page 1396.