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Oligo( p ‐phenylene vinylene)s as a “New” Class of Piezochromic Fluorophores
Author(s) -
Kunzelman J.,
Kinami M.,
Crenshaw B. R.,
Protasiewicz J. D.,
Weder C.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701772
Subject(s) - materials science , supramolecular chemistry , phenylene , fluorescence , solid state , molecule , ring (chemistry) , poly(p phenylene vinylene) , photochemistry , polymer chemistry , electroluminescence , nanotechnology , polymer , organic chemistry , chemistry , optics , composite material , physics , layer (electronics)
Cyano‐substituted oligo( p ‐phenylene vinylene) derivatives can display piezochromic fluorescence. This rare and desirable effect is achieved by balancing π–π and aliphatic interactions in these molecules through the variation of electron density in the central ring and the length of peripheral aliphatic tails. This leads to fluorophores which can adopt different supramolecular structures and as a result can change their solid‐state emission characteristics upon compression.