Figure 4.
ESI mass spectra of VEPIPY formed from ~1 mM sodium chloride and 1:1 water: methanol solution (a) without exchange and (b) after 50 s exchange with D2O at a pressure of 1 × 10−6 torr and FLEEL (c) without exchange and (d) after 50 s exchange with D2O at a pressure of 1 × 10−6 torr.