Hetarylazopyrazolone Dyes Based on Benzothiazole and Benzimidazole Ring Systems: Synthesis, Spectroscopic Investigation, and Computational Study

<div>(a) Scanning graph of the dye 3a on dihedral angle (S24–C7–N22–C13). (b) Scanning graph of the dye 3a on dihedral angle (N26–C16–N19–N27).</div>

Journal of Chemistry

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Figure 3

Figure 3: Hetarylazopyrazolone Dyes Based on Benzothiazole and Benzimidazole Ring Systems: Synthesis, Spectroscopic Investigation, and Computational Study 

Figure 3 | Hetarylazopyrazolone Dyes Based on Benzothiazole and Benzimidazole Ring Systems: Synthesis, Spectroscopic Investigation, and Computational Study 