Helical Chiral Polyisocyanides Possessing Porphyrin Pendants: Determination of Helicity by Exciton-Coupled Circular Dichroism This work was supported by a Grant-in-Aid for COE Research and Scientific Research from the Ministry of Education, Science, Sports, and Culture. F.T. gratefully acknowledges partial support of this work by the Hayashi Memorial Foundation for Female Natural Scientists.

Abstract

Exciton-coupled circular dichroism of the porphyrin Soret band of triblock copolymers prepared from chiral isocyanide monomers and an achiral tetraphenylporphyrin derivative (TPP) provides a novel method for determining the helical sense of poly(aryl isocyanide)s (see the schematic representation of the structure).