© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
May 02, 2012
VIP: Postfunctionalization of Helical Polyisocyanopeptides with Phthalocyanine Chromophores by Click Chemistry
I. López-Duarte, M. V. Martínez-Díaz, E. Schwartz, M. Koepf, P. H. J. Kouwer, A. E. Rowan,* R. J. M. Nolte*, T. Torres*
Rigid rod polyisocyanopeptide compounds bearing phthalocyanines as pendant groups have been synthesized through copper(I)-catalyzed azide–alkyne cycloaddition of polyisocyanopeptides bearing acetylene groups and zinc(II) phthalocyanine azide. As confirmed by UV/Vis, fluorescence, and circular dichroism spectroscopies, the phthalocyanine units are arranged in a helical fashion along the polymer backbone, thus forming the longest well-defined phthalocyanine assembly described to date.