Title: Synthesis, linear & non linear optical (NLO) properties of some indoline based chromophores
Authors: Bhuiyan, M. Delower H ×
Ashraf, Mohamed
Gorfo, Ayele Teshome
Gainsford, Graeme J
Kay, Andrew J
Asselberghs, Inge
Clays, Koen #
Issue Date: May-2011
Publisher: Applied Science Publishers
Series Title: Dyes and Pigments vol:89 issue:2 pages:177-187
Abstract: A series of indoline-pi-acceptor chromophores has been synthesized and the members first hyper-polarizabilities measured to investigate the effect of conjugation length, the use of various substituents and configurational locking on the nonlinear optical response. While increasing the length of the conjugated interconnect enhances the optical nonlinearity, ring locking was found to have little effect, although this is thought to be due to the electronic properties of the substituent groups, rather than structural factors. Nonetheless, all of the compounds were found to have high molecular hyper-polarizabilities with values of up to 1485 x 10(-30) esu when measured in chloroform at 1300 nm, findings which confirm that these chromophores are excellent candidates for further study. X-ray crystallographic studies were performed on three of the compounds and bond length alternation values obtained; these were found to correlate well with the observed molecular responses. (C) 2010 Elsevier Ltd. All rights reserved.
ISSN: 0143-7208
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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