Fig. 4.

Interactions of C_n-IMe·HI (n = 7, 11, 15) on a DPPC containing monolayer. Epi-fluorescence images of the monolayers of DPPC mixed with different molar fractions of a C₁₅-IMe·HI, b C₁₁-IMe·HI, and c C₇-IMe·HI at the air-water interface at 293 K. All samples were mixed with 0.5 mol% of the fluorescent dye BODIPY-PC. The frame size of all images is 120 × 120 μm. d The excess Gibbs free energy (ΔG^ex) of mixing versus composition plots of the binary mixed monolayers of DPPC/C₁₅-IMe·HI at several, constant surface pressures at 293 K. Modified from Wang et al. (2016)