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Helical Sense Bias Induced by Point Chirality in Cage Compounds
Author(s) -
Alajarín Mateo,
LópezLeonardo Carmen,
Vidal Angel,
Berná José,
Steed Jonathan W.
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020402)41:7<1205::aid-anie1205>3.0.co;2-x
Subject(s) - tripod (photography) , chirality (physics) , asymmetry , cage , crystallography , chemistry , stereochemistry , materials science , physics , combinatorics , mathematics , symmetry breaking , quantum mechanics , chiral symmetry breaking , optics , nambu–jona lasinio model
Highly efficient chirality transfer is employed in controlling the topological asymmetry of chiral cages with propeller‐like shape and pseudo C 3 symmetry (see picture; R=H, Cl). The cages are formed when two tripodal units (a tribenzylamine and a tris(tertiary phosphane)) become linked by three P=N bonds, by means of a tripod–tripod coupling process followed by a remarkable triple expulsion of molecular nitrogen.