title: Concise multigram-scale synthesis of push-pull tricyanofuran-based hemicyanines with giant second-order nonlinearity: an alternative for electro-optic materials.
abstract: Highly stable and highly soluble push-pull heptamethine hemicyanines based on the tricyanofuran electron-accepting group can be prepared on a 15 g scale. The compounds display giant second-order nonlinear figure of merit, μβ of up to 31,000×10(-48) esu, and lead to a poled material with a second-order nonlinear response, r33 of 90 pm V(-1) at 1.06 μm.
authors.affiliation: Laboratoire de Chimie de l'ENS de Lyon, CNRS UMR 5182, Université Lyon I, ENS de Lyon, 46, allée d'Italie, 69364 Lyon cedex 7 (France), Fax: (+33) 4-72-72-88-60.
authors.forename: Wissam
authors.initials: W
authors.lastname: Bentoumi
authors.forename: Jean-Christophe
authors.initials: JC
authors.lastname: Mulatier
authors.forename: Pierre-Antoine
authors.initials: PA
authors.lastname: Bouit
authors.forename: Olivier
authors.initials: O
authors.lastname: Maury
authors.forename: Alberto
authors.initials: A
authors.lastname: Barsella
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Vola
authors.forename: Evelyne
authors.initials: E
authors.lastname: Chastaing
authors.forename: Laurent
authors.initials: L
authors.lastname: Divay
authors.forename: Françoise
authors.initials: F
authors.lastname: Soyer
authors.forename: Pierre
authors.initials: P
authors.lastname: Le Barny
authors.forename: Yann
authors.initials: Y
authors.lastname: Bretonnière
authors.forename: Chantal
authors.initials: C
authors.lastname: Andraud
keywords: chromophores; electro-optic materials; nonlinear optics; push-pull systems