FIGURE 2.

Grazing incidence x-ray diffraction data (GID) from monolayers of pure DLgPC and its binary mixtures with Vpu at π = 45 mN/m and T = 20°C. (a) GID for pure DLgPC, shown here in two dimensions from q_z-resolved scans in a gray-scale representation as a function of q_xy, q_z over the ranges indicated. (b–f) GID for DLgPC/Vpu mixtures at mole ratios 50:1, 40:1, 20:1, 15:1, and 10:1, shown here in two dimensions from q_z-resolved scans in a gray-scale representation as a function of q_xy, q_z over the ranges indicated. (g) GID shown here as a q_z-integrated (0.0 Å⁻¹ ≤ q_z ≤ 0.8 Å⁻¹) scan at β = 0° as a function of q_xy over the range indicated. (h) q_z-resolved GID data over the range 0.0 Å⁻¹ ≤ q_z ≤ 0.8 Å⁻¹ centered on the maximum at q_xy = 1.429 Å⁻¹. (i) GID shown here as a q_z-integrated (0.4 Å⁻¹ ≤ q_z ≤ 1.2 Å⁻¹) scan at β = 6° as a function of q_xy over the range 0.4 Å⁻¹ ≤ q_z ≤ 1.2 Å⁻¹. (j) q_z-resolved GID data over the range 0.4 Å⁻¹ ≤ q_z ≤ 1.2 Å⁻¹ centered on the maximum at q_xy = 1.383 Å⁻¹.