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Cover Picture: Dibridgehead Diphosphines that Turn Themselves Inside Out (Angew. Chem. Int. Ed. 29/2011)
Author(s) -
Stollenz Michael,
Barbasiewicz Michał,
NawaraHultzsch Agnieszka J.,
Fiedler Tobias,
Laddusaw Ryan M.,
Bhuvanesh Nattamai,
Gladysz John A.
Publication year - 2011
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/anie.201103784
Subject(s) - diphosphines , cover (algebra) , isomerization , turn (biochemistry) , ring (chemistry) , pairing , chemistry , crystallography , stereochemistry , physics , condensed matter physics , engineering , mechanical engineering , biochemistry , organic chemistry , catalysis , superconductivity
Macrocyclic bicyclic molecules in which the three flexible diphosphine chains linking the bridgehead atoms undergo a topological process (homeomorphic isomerization) involving passing one chain through the ring formed by the other two, thereby turning the compound inside‐out with apparent pyramidal inversion, are described by J. A. Gladysz and co‐workers in their Communication on page 6647 ff. Modifying alchemical symbolism and in memory of Kekulé's famous dream, the diphosphines are represented by three Ouroboros snakes that form a cage by seizing each other's tails instead of their own.