Triphenylamine-based allylidenemalononitrile chromophores synthesis, and photophysical and second-order nonlinear optical properties

Emine Catal , Ergin Keles , Nurgul Seferoglu , Sylvain Achelle (1) , Alberto Barsella (2) , Françoise Robin Le Guen (1) , Zeynel Seferoglu

1 ISCR - Institut des Sciences Chimiques de Rennes
2 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg

A series of chromophores based on a mono-, di- or tri-substituted triphenylamine core and allylidenemalononitrile fragments has been designed. The linear and second order nonlinear optical properties as well as thermal stability of the chromophores have been studied experimentally. Structure-property relationships, in terms of the branching effect on the triphenylamine core and the influence of the aniline/coumarin part on the photophysical properties and NLO response, have been highlighted. The experimental results have been rationalized by theoretical calculations.

Domaines: Chimie

Emine Catal, Ergin Keles, Nurgul Seferoglu, Sylvain Achelle, Alberto Barsella, et al.. Triphenylamine-based allylidenemalononitrile chromophores synthesis, and photophysical and second-order nonlinear optical properties. New Journal of Chemistry, 2018, 42 (18), pp.15052-15060. ⟨10.1039/c8nj02794c⟩. ⟨hal-01902038⟩