Theoretical Design of Substituted Tetrathia-[7]-Helicenes with Large Second-Order Nonlinear Optical Responses

Increasing response: Semiempirical calculations show that substituting tetrathia‐[7]‐helicene in positions 7 and 8 (see graphic) as well as in positions 2 and 13 by adequate donor/acceptor pairs can lead to a substantial increase of the second‐order nonlinear optical response.

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Bibliographic Details
Published in:Chemphyschem 2004-09, Vol.5 (9), p.1438-1442
Main Authors: Champagne, Benoît, André, Jean-Marie, Botek, Edith, Licandro, Emanuela, Maiorana, Stefano, Bossi, Alberto, Clays, Koen, Persoons, André
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Electric and magnetic moments (and derivatives), polarizability and magnetic susceptibility
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
helical structures
Molecular properties and interactions with photons
nonlinear optical properties
Nonlinear optics
Optical susceptibility, hyperpolarizability
Optics
Physics
Properties of molecules and molecular ions
semiempirical calculations
substituent effects
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Description
Summary:Increasing response: Semiempirical calculations show that substituting tetrathia‐[7]‐helicene in positions 7 and 8 (see graphic) as well as in positions 2 and 13 by adequate donor/acceptor pairs can lead to a substantial increase of the second‐order nonlinear optical response.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.200400225