Amino-substituted-1,1-dicyano-2,4-diaryl-1,3-butadiene chromophores: Synthesis and photophysical properties
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, vol.248, 2021 (Journal Indexed in SCI)
Article / Article
Title of Journal :
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Allylidenemalononitrile, NIR emission, Push-pull, Triphenylamine, Intramolecular charge transfer (ICT), DFT calculations, NONLINEAR-OPTICAL-MATERIALS, LIGHT, DYES, HYPERPOLARIZABILITIES, FLUORESCENCE, ELECTRONICS
© 2020 Elsevier B.V.A series of D-π-A chromophores based on allylidenemalononitrile electron-withdrawing group was designed. The influence of the amino-electron-donating group on the photophysical properties was studied. These compounds, highly thermally stable, exhibit orange-red emission in solution and in solid state. The experimental results have been rationalized by theoretical DFT calculations. The second order nonlinear optical properties were also studied using the electric field induced second harmonic generation (EFISH) method.