Abstract
Silver p-tolylacetylide is an achiral molecule; however, its nanostructure has been found to consist of twisted nanoribbons. The twisted ribbon is a helicoid that combines translation and perpendicular rotation along the ribbon axis. A helix, a typical chiral structure, can be created by the aggregation of achiral molecules, and the recrystallization conditions control the twist of the nanoribbons. Therefore, the recrystallization controls the chirality.
Highlights
There are many known helical structures of various sizes
It is reasonable to assume that the chirality of a protein or structure comes from the chirality of the component amino acids (L-stereoisomers)
A helix with the opposite direction of rotation will result from the use of amino acids of the opposite chirality (D-stereoisomers) [6]
Summary
There are many known helical structures of various sizes. The winding staircase is a typical helical architectural feature on the macroscale. The aggregation of molecules can form nano-helical structures in supramolecular chemistry [1–5]. We succeeded in producing a helical nanostructure from an achiral molecule of silver acetylide.
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