Figure 4

UV-vis absorption spectra for 1a-4b in ACN at 298 K. Inset: Zoomed UV-vis spectra for the low energy region between 350–550 nm.
UV-vis absorption spectra for 1a-4b in ACN at 298 K. Inset: Zoomed UV-vis spectra for the low energy region between 350–550 nm.