Fig. 1
From: Single-molecule insights into surface-mediated homochirality in hierarchical peptide assembly
Individual valinomycin monomer. a Structure formula of valinomycin. b STM image (8 nm × 8 nm) of valinomycin monomers adsorbed on Cu(111) surface at 78 K. ML and MR coexist on the surface. c, d Calculated adsorption configurations of ML and MR. ML and MR were schematically simplified as yellow counterclockwise propeller and blue clockwise propeller in the top right corners, respectively. Side views of simulated molecular model of valinomycin packed with electron density deposited onto the Cu(111) surface were inserted in the bottom left corners. In calculated molecular models, copper, carbon, nitrogen, oxygen, and hydrogen atoms were displayed in brass, cyan, blue, red, and gray, respectively. e Statistic molecular numbers of ML and MR
