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Université de Fribourg

Controlled tautomeric switching in azonaphthols tuned by substituents on the phenyl ring

Antonov, Liudmil ; Deneva, Vera ; Simeonov, Svilen ; Kurteva, Vanya ; Crochet, Aurelien ; Fromm, Katharina M. ; Shivachev, Boris ; Nikolova, Rositsa ; Savarese, Marika ; Adamo, Carlo

In: ChemPhysChem, 2015, vol. 16, no. 3, p. 649–657

A series of new tautomeric azonaphthols are synthesized and the possibilities for molecular switching are investigated using molecular spectroscopy, X-ray analysis and density functional theory quantum chemical calculations. Two opposite effects that influence switching are studied: attaching a piperidine sidearm, and adding substituents to the phenyl ring. On the one hand, the attached...