Fig. 2: Chemical structures and 1H-NMR spectra (in DMSO-d6) of PMC and PSP.
From: An ultrawide-range photochromic molecular fluorescence emitter
a Partial 1H-NMR spectrum of PMC. b Partial 1H-NMR spectrum of PSP. The variations of chemical shift of protons are marked with different color dashed lines.
