Issue 97, 2016

Selection of conformational states in surface self-assembly for a molecule with eight possible pairs of surface enantiomers

Abstract

Self-assembly of a molecule with many distinct conformational states, resulting in eight possible pairs of surface enantiomers, is investigated on a Au(111) surface under UHV conditions. The complex molecule is equipped with alkyl and carboxyl moieties to promote controlled self-assembly of lamellae structures. From statistical analysis of Scanning Tunnelling Microscopy (STM) data we observe a clear selection of specific conformational states after self-assembly. Using Density Functional Theory (DFT) calculations we rationalise how this selection is correlated to the orientation of the alkyl moieties in mirror-image domains of the lamellae structures, leading to selection of three out of the eight possible enantiomeric pairs.

Graphical abstract: Selection of conformational states in surface self-assembly for a molecule with eight possible pairs of surface enantiomers

Supplementary files

Article information

Article type
Communication
Submitted
22 Aug. 2016
Accepted
09 Nov. 2016
First published
09 Nov. 2016

Chem. Commun., 2016,52, 14023-14026

Selection of conformational states in surface self-assembly for a molecule with eight possible pairs of surface enantiomers

A. Nuermaimaiti, V. S-Falk, J. L. Cramer, K. L. Svane, B. Hammer, K. V. Gothelf and T. R. Linderoth, Chem. Commun., 2016, 52, 14023 DOI: 10.1039/C6CC06876F

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