Oligo(phenylenevinylene)s with Terminal Donor-Acceptor Substitution

Hypsochromic or bathochromic? Depending upon the acceptor group (A=H, CN, CHO, NO2) the position and intensity of the absorption maxima of a series of substituted oligo(phenylenevinylene)s change (see picture). Supported by semi‐empirical calculations, the extent and direction of the shift (hypsochr...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2002-01, Vol.41 (2), p.292-295
Main Authors: Meier, Herbert, Gerold, Jürgen, Kolshorn, Heinz, Baumann, Wolfram, Bletz, Michael
Format: Article
Language:English
Subjects:
absorption
Charge transfer
Conjugation
donor-acceptor systems
Mathematical analysis
Maxima
Nitrogen dioxide
oligomers
Pictures
semiempirical calculations
Terminals
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Summary:Hypsochromic or bathochromic? Depending upon the acceptor group (A=H, CN, CHO, NO2) the position and intensity of the absorption maxima of a series of substituted oligo(phenylenevinylene)s change (see picture). Supported by semi‐empirical calculations, the extent and direction of the shift (hypsochromic or bathochromic) is attributable to the opposing effects of length of conjugation and charge transfer.
ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20020118)41:2<292::AID-ANIE292>3.0.CO;2-Q