A Tightly Stretched Ultralong Supramolecular Multiporphyrin Array Propagated by Double-Strand Formation

Mitsuhiko Morisue; Yuki Hoshino; Masaki Shimizu; Shinobu Uemura; Shinichi Sakurai

doi:10.1002/chem.201602968

A Tightly Stretched Ultralong Supramolecular Multiporphyrin Array Propagated by Double-Strand Formation

Chemistry. 2016 Sep 5;22(37):13019-22. doi: 10.1002/chem.201602968. Epub 2016 Aug 4.

Authors

Mitsuhiko Morisue¹, Yuki Hoshino², Masaki Shimizu², Shinobu Uemura³, Shinichi Sakurai⁴

Affiliations

¹ Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan. morisue@kit.ac.jp.
² Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
³ Department of Engineering, Kagawa University, Hayashi-cho, Takamatsu, 761-0396, Japan.
⁴ Faculty of Biobased Materials Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.

PMID: 27490938
DOI: 10.1002/chem.201602968

Abstract

A shape-programmed linearity through supramolecular polymerization is demonstrated by a step-growth double-strand formation of a telechelic oligomeric porphyrin array in which two alternating pyridyl-porphyrin sequenced units are held together by self-complementary ligand-to-metal coordination. The stiff rod-like structure and sufficiently large binding constant of the double-strand unit considerably extended a supramolecular array in the one dimension, which produced a tightly stretched string with a length that exceeded several micrometers.

Keywords: double-strand formation; nanotechnology; porphyrins; shape programing; supramolecular polymerization.