Synthesis, structural investigations, and DFT calculations on novel 3-(1,3-dioxan-2-yl)-10-methyl-10H-phenothiazine derivatives with fluorescence properties
with molecular mechanics and semi-empirical DFT calculations, which supported an anancomeric chair conformation of the 1,3-dioxane ring with the phenothiazine substituent in the equatorial position and possible free rotation about the single bond linking the two heterocyclic units. The newcompounds display daylight fluorescence characterized by remarkably large Stokes shifts determined by LE spectroscopy