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A new series of azo–azomethine dyes with N2S2O2 donor set of atoms have been synthesized via condensation reaction of α,α′-bis(2-aminoethylthio)-1,3-xylene and substituted azo-coupled salicylaldehyde. The dyes were characterized by IR, UV–Vis and 1H NMR spectroscopic methods as well as elemental analysis. The solvatochromic behavior of the dyes was probed by studying their UV–Vis spectra in four pure...
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