title: Switching of chiral induction in helical aromatic oligoamides using solid state-solution state equilibrium.
abstract: The introduction of an R asymmetric center in an aromatic oligoamide that adopts stable helical conformations leads to a significant shift of the equilibrium between the right-handed and left-handed helices in solution: the R-P and R-M helices are diastereoisomers. However, these two species were found to cocrystallize in 1:1 proportions. Thus the chiral induction observed in solution is switched off in the solid state. This phenomenon represents an original and unexpected means to control handedness in helical oligomers.
authors.affiliation: Institut Européen de Chimie et Biologie, 2 rue Robert Escarpit, 33607 Pessac, France.
authors.forename: Hua
authors.initials: H
authors.lastname: Jiang
authors.forename: Christel
authors.initials: C
authors.lastname: Dolain
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Léger
authors.forename: Heinz
authors.initials: H
authors.lastname: Gornitzka
authors.forename: Ivan
authors.initials: I
authors.lastname: Huc