Decreased optical nonlinearities upon CF3 substitution on tricyanofuran acceptors.
Replacement of the tricyanofuran (TCF) acceptor by its stronger analogue CF 3-TCF results in decreased second-order optical nonlinearities in merocyanines bearing a proaromatic 1,3-dithiole donor. The TCF-containing derivatives display exceptionally high mu beta values up to 31,000 x 10(-48) esu, unprecedented for 1,3-dithiole-based NLO-phores.
Andreu
Raquel
R
Departamento de Química Orgánica, ICMA, Universidad de Zaragoza-CSIC, E-50009 Zaragoza, Spain.
Cerdán
Miguel Angel
MA
Franco
Santiago
S
Garín
Javier
J
Marco
Ana Belén
AB
Orduna
Jesús
J
Palomas
David
D
Villacampa
Belén
B
Alicante
Raquel
R
Allain
Magali
M