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5 mar 2024 · The auxochromic effect of the different substituents on the UV-Vis spectrum relative to alizarin will be analyzed by quantifying the changes in the relative positions of the ground and lowest excited electronic states.
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Ultraviolet-Visible (UV-Vis) Spectrum. View the Full Spectrum for FREE! The full spectrum can only be viewed using a FREE account. Properties. UV-VIS of Alizarin Red S.
1 wrz 2024 · By combining computational insights with experimental data, our study has demonstrated the great efficiency of the optimized computational protocol for accurately predicting UV–Vis spectra, CIELAB color coordinates, and NMR shift of alizarin, the main coloring molecule of Madder, and its analog alizarin red S.
We focus on alizarin and its derivatives by introducing auxochromes in position C3 for simplicity since gradual changes are expected in the corresponding UV-Vis spectra and also because other positions would not provide active centers for convenient syntheses for new stable dyes.
31 sty 2022 · Three anthraquinone-based chromophores (9,10-anthraquinone, alizarin, purpurin) are compared from the point of view of their experimental and computed NMR and UV-visible light absorption spectra.
