Ryo Katoono, Hidetoshi Kawai, Kenshu Fujiwara and Takanori Suzuki
Chem. Commun., 2005, 5154-5156
DOI:
10.1039/B510134D,
Communication
Upon complexation of a rectangular-shaped achiral macrocyclic host with chiral guests, twisting deformation occurs to induce exciton-type bisignated CD, whereas a chiral rectangular host undergoes a similar structural change only with the matching enantiomer of a chiral guest.