Title: Switching of molecular second-order polarisability in solution
Authors: Asselberghs, Inge ×
Clays, Koen
Persoons, Andre
Ward, MD
McCleverty, J #
Issue Date: Jan-2004
Publisher: Royal soc chemistry
Series Title: Journal of materials chemistry vol:14 issue:19 pages:2831-2839
Abstract: Second-order nonlinear optical ( NLO) polarisabilities or first hyperpolarisabilities, beta, of molecules may be manipulated by reversibly modifying the properties of specific parts of active molecules, usually by on/off switching. This may involve reducing the donor capacity of the electron-rich fragment of a typical donor - acceptor species, D - A, by oxidation or protonation. Conversely, the acceptor behaviour of A may be altered by reduction, or by deprotonation. Alteration of the first hyperpolarisability may also involve structural or chemical modification of the bridging group, thereby interfering with the communication between D and A. Much of the article focuses on redox behaviour of NLO-active metal-containing compounds, mainly describing dipolar species in which the donor fragment containing a metal is oxidised, but giving examples of switching behaviour in octopolar species and of protonation/ deprotonation behaviour.
ISSN: 0959-9428
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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