a–f AFM height images of carboxylic acid monolayers spin coated from alcoholic solvents. The z range is 2 nm for a–c and 3 nm for e–f. g Molecular packing in 2-D stripe nanopattern of carboxylic acid monolayer on HOPG. The structure is based on C18A B-form crystal viewed along the a axis. Monoclinic P2
/a crystal structure with a = 5.591 Å, b = 7.704 Å, c = 43.990 Å, and β = 94.6°.