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Cover Picture (Angew. Chem. Int. Ed. Engl. 15/1996)
Publication year - 1996
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.199615851
Subject(s) - cover (algebra) , enantiomer , crystallography , citation , crystallization , physics , chemistry , stereochemistry , computer science , library science , thermodynamics , engineering , mechanical engineering
The cover picture shows the time dependence of the optical rotation of a solution of a mixture of the bicyclic lactam 2‐azabicyclo[2.2.2]hept‐5‐en‐3‐one enantiomers, which depicts oscillations during resolution by the preferential crystallization method. This phenomenon arises because layers of the (−)‐ and (+)‐enantiomers (depicted as red and green hexagons, respectively) crystallize alternately from solution to form each crystal. The results on this apparently bizarre and unprecedented oscillating behavior are described in the communication by A. Collet et al. on p. 1666.