Fig. 4: Schematic diagram of the supramolecular assembly arrangement and chirality transfer mechanism. | Nature Communications

Fig. 4: Schematic diagram of the supramolecular assembly arrangement and chirality transfer mechanism.

From: Direct observation of long-range chirality transfer in a self-assembled supramolecular monolayer at interface in situ

Fig. 4

a A schematic representation of SFG to detect the nanorod structures formed by the self-assembly of L-/D-GAn molecules at the interface. b L-/D-GAn molecules assemble at the interface to form antiparallel β-sheet-like structures and further assemble into nanorod structures. c Schematic diagram of the intermolecular interactions and hierarchical assembly process of L-/D-GAn molecules. The nanorod contains about 30 molecules along the x-axis, about 900 molecules along the y-axis, and one molecule along the z-axis (alkyl chain, red; amide group, blue; virtual β-sheet-like plane, green). The hydrogen bond is formed by the amide groups on two adjacent L-GAn molecules (amide 2 and amide 3, blue; amide 1 and amide 1, red; amide 2 and amide 2, purple; amide 3 and amide 3, orange). d Chirality is transferred from the chiral center to the amide groups. The hydrogen bonds between the amide groups cause the amide groups to twist and further transfer the chirality to the anthracene ring and alkyl chains. The twisting of the alkyl chains allows chirality to be transferred to the terminal methyl group.

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