A new class of organic donor-acceptor molecules with large third-order optical nonlinearities.
Donor-acceptor molecules with 4-(dimethylamino)phenyl donor and 1,1,4,4-tetracyanobuta-1,3-diene acceptor moieties are readily prepared by short, high-yielding routes. The quite small chromophores are characterised by X-ray crystallography and feature intense intramolecular charge-transfer bands, substantial quinoid character in the donor rings, reversible electrochemical reductions and oxidations and powerful third-order optical nonlinearities.
Michinobu
Tsuyoshi
T
Laboratorium für Organische Chemie, ETH-Hönggerberg, CH-8093 Zürich, Zwitzerland.
May
Joshua C
JC
Lim
Jin H
JH
Boudon
Corinne
C
Gisselbrecht
Jean-Paul
JP
Seiler
Paul
P
Gross
Maurice
M
Biaggio
Ivan
I
Diederich
François
F