NDLI: Indole-Based NLOphoric Donor-π-Acceptor Styryl Dyes: Synthesis, Spectral Properties and Computational Studies

Content Provider	Springer Nature Link
Author	Chemate, Santosh Sekar, Nagaiyan
Copyright Year	2016
Abstract	Donor-π- acceptor styryl chromophores based on indole core were synthesized by Knoevenagel condensation of N-ethyl indole-3-carbaldehyde and different active methylene compounds. The absorption and emission properties of these dyes in different solvents were studied. The dyes displayed a broad absorption maximum in the UV and visible region between 397 and 469 nm with FWHM, 50 to 75 nm. Due to the extended π – conjugated systems this styryl chromophores shows strong intramolecular charge transfer characteristics. The dyes showed solid state emission and emission in solid state was red shifted as compared to their emission in less polar solvents. Density Functional Theory [B3LYP/6–311 + G(d)] computations were used to correlate the structural, molecular, electronic and photo physical parameters of styryl dye with experimental study. Synthesized dyes were confirmed by using FT-IR, $^{1}$H NMR, $^{13}$C NMR and HRMS spectral analysis.
Starting Page	2063
Ending Page	2077
Page Count	15
File Format	PDF
ISSN	10530509
Journal	Journal of Fluorescence
Volume Number	26
Issue Number	6
e-ISSN	15734994
Language	English
Publisher	Springer US
Publisher Date	2016-08-16
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Indole-3-carbaldehyde Styryl Solid state fluorescence DFT Biomedicine Biological and Medical Physics, Biophysics Biotechnology Biochemistry Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Sociology and Political Science Spectroscopy Law Biochemistry Clinical Biochemistry Clinical Psychology

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