Figure 2

(a) Chemical structure of BPEPE-F18. (b) Large-area STM topography of the self-assembly. (c) High-resolution AFM imaged obtained with a CO tip. A black rectangle shows the unit cell. (d) Magnified AFM image, indicated by a white area in c. (e) Same as d with a superimposed stick-and-ball drawing of BPEPE-F18. (f) Calculated molecular electrostatic potentials of BPEPE-F18 projected on the constant density (0.001 e/Bohr3) surface.