Chemists from RUDN carried out detailed analysis of the nature of intermolecular bonds between nitrogen and chlorine in the molecules of azo dyes and defined their photochromic properties. The scientists also clarified the importance of hydrogen and halogen intermolecular bonds in the stabilization of dyes structure. The research can be useful for all the types of azo dyes applications. The article was published in the Dyes and Pigments journal.
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