Fig. 5: Fluorescence images and normalized emission spectra of selected compounds.
From: Fluorescent pyridine phosphonium salts via transmutation of metallabenzenes
A Ambient and fluorescence images of selected N-heterocycles 6 (6a, 6 f, 6j, and 6i (upper) in DCM under natural light; (bottom) in DCM irradiated at 365 nm. B Ambient and fluorescence images of Pyridine Phosphonium Salts (7a, 7b, 7 d, 7 f, 7 g, 7 h, 7i; (upper) in DCM under natural light; (bottom) in DCM irradiated at 365 nm. C Normalized emission spectra of selected N-heterocycles 6 (6a, 6 f, 6j, and 6i). D Normalized emission spectra of 7a, 7b, 7 d, 7 f, 7 g, 7 h, 7i.
