Modification of indole by electron-rich atoms and their application in novel electron donor materials

• Published in: Chemical physics letters Vol. 681; pp. 105 - 109
• Main Authors: Zhang, Maolin, Qin, Guangjiong, Liu, Jialei, Zhen, Zhen, Fedorchuk, A.A., Lakshminarayana, G., Albassam, A.A., El-Naggar, A.M., Ozga, Katarzyna, Kityk, I.V.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2017
• Subjects: Chromophore; Electron donor; Indole; Nonlinear optics; Nonlinear optics; Indole; Electron donor; Chromophore
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2017.05.067

[Display omitted] •Novel NLO chromophore based on 6-(pyrrolidin-1-yl)-1H-indole was synthesized.•Synthesized chromophore was characterized by 1H NMR,13C NMR, and MS spectra.•Thermal decomposition temperature could reach up to 275°C.•An average electro-optic (EO) coefficient (r33) was 19pm/V at wavelength 1310nm.•Chromophore ZML-1 exhibits enhanced electro-optical activity. Novel nonlinear optical (NLO) chromophore based on 6-(pyrrolidin-1-yl)-1H-indole as the electron donor group was designed and synthesized. The molecular structure of this chromophore was characterized by 1H NMR spectra, 13C NMR spectra, and MS spectra. The delocalized energy level was estimated by UV–Vis. spectra. The thermal property was studied by thermogravimetric analysis (TGA). The poled films containing chromophores ZML-1 with a loading density of 10wt% in amorphous polycarbonate (APC) afford an average electro-optic (EO) coefficient (r33) of 19pm/V at 1310nm. Compared to the reported aniline-based chromophore (r33=12pm/V) analogues, chromophore ZML-1 exhibits enhanced electro-optical activity.