[ACIE] 我室洪文晶教授发表论文:Strain of supramolecular interactions in single-stacking junctions

发布日期:2022年04月25日   浏览次数:

我室洪文晶教授在 ACIE 上发表论文:Strain of supramolecular interactions in single-stacking junctions

摘要:Supramolecular electronics provide opportunities to integrate molecular building blocks into electronic circuits, and investigations of the mechanical properties of the non-covalent interactions are necessary to understand the role of the assembly configuration in the electronic coupling among different assembly blocks. However, the mechanical characterization of supramolecular interactions remains experimentally challenging. We investigated the strain distribution of the supramolecular interactions through a series of single-stacking junctions. The alpha values exhibit a clear odd-even effect versus the numbers of thiophene rings. The theoretical calculations demonstrated that a larger rotational barrier of the single-stacking junctions with an even number of thiophene rings leads to limited torsional freedom and thus a smaller strain distribution. These results provide new insights into the control of supramolecular interactions by the design of the basic molecular building blocks.