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Helical Polymer‐Anchored Porphyrin Nanorods
Author(s) -
de Witte Pieter A. J.,
Castriciano Mariangela,
Cornelissen Jeroen J. L. M.,
Monsù Scolaro Luigi,
Nolte Roeland J. M.,
Rowan Alan E.
Publication year - 2003
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200390204
Subject(s) - porphyrin , dispersity , polymer , chromophore , materials science , nanorod , side chain , polymer chemistry , chemistry , photochemistry , nanotechnology , composite material
Well‐defined arrays of porphyrins attached to a rigid polyisocyanide backbone have been synthesized and their physical and optical properties studied. The helical polymers are rigidified by an inter‐side chain hydrogen‐bonded network and have an average mass of 1.1×10 6 Daltons and a polydispersity index of 1.3. Each of the polymer strands contains four columns of around 200 stacked porphyrins and has an overall length of 87 nm. The chromophores are arranged in a left‐handed helical fashion along the polymer backbone. Photophysical studies show that at least 25 porphyrins within one column are excitationally coupled.