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Homoconjugated Push–Pull and Spiro Systems: Intramolecular Charge‐Transfer Interactions and Third‐Order Optical Nonlinearities
Author(s) -
Kato Shinichiro,
Beels Marten T. Roberts,
La Porta Philip,
Schweizer W. Bernd,
Boudon Corinne,
Gisselbrecht JeanPaul,
Biaggio Ivan,
Diederich François
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201002236
Subject(s) - intramolecular force , ferrocene , chromophore , order (exchange) , chemistry , push pull , photochemistry , materials science , stereochemistry , electrical engineering , electrode , electrochemistry , engineering , finance , economics
Homoconjugated push–pull chromophores are obtained by [2+2] cycloaddition of 2,3‐dichloro‐5,6‐dicyano‐ p ‐benzoquinone to anilino or ferrocene donor‐substituted alkynes, and in one case a spiro compound (see picture: examples with corresponding electron adsorption spectra; C gray, Cl green, N blue, O red). Significant third‐order optical nonlinearities could be measured for the first time for homoconjugated push–pull systems.