Fig. 3: NMR spectra of PMC2/SIZ2.
From: Photochromism of pyridine-substituted merocyanine through reversible C-N bond formation

A 1H NMR spectral evolution of PMC2 in CD2Cl2 before (up) and after (down) irradiation. B 1H-13C HMBC spectral evolution of PMC2 in CD2Cl2 before (left) and after (right) irradiation. C 1H-15N HMBC spectral evolution of PMC2 in CD2Cl2 before (up) and after (down) irradiation. Irradiation was conducted with white LED for 120 s. The 3JHC and 3JHN correlations are indicated by red bonds and blue ovals for clarity. More NMR spectra can be seen in Figures S17 and S18.