Experimental (black) UV absorption of NMA in water, and simulated spectra WS (red), BH (blue), WS′ (pink), BH′ (green), and BHM (brown). For better comparison with experiment, the WS and WS′ spectra are blueshifted by 4 nm, and the BH, BH′, and BHM spectra are blueshifted by 7 nm. The spectra are scaled to have the same peak height.