Tetrathiafulvalene (TTF) derivatives are currently a prevalent and promising topic due to their high symmetry, planarity and reversible redox properties. The study of TTF derivatives’ supramolecular architectures on the surface of HOPG plays an increasingly important role in molecular electronics in practical application areas. Above all, scanning tunneling microscopy (STM) has the advantages of in situ, real-time, and atomic-level resolution. It plays an irreplaceable role in the study of self-assembly on a solid surface to disclose the conformations and arrangements of target molecules. In this perspective, we mainly describe the progress in the self-assembly of TTF derivatives on the surface of HOPG. Throughout the study, their intermolecular interactions contribute to the construction of supramolecular structures. In addition, the strength of interactions strongly depends on the chemical structure.

中文翻译：

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HOPG界面上TTF衍生物自组装的进展

四硫富瓦烯（TTF）衍生物由于其高对称性，平面性和可逆的氧化还原特性，目前是一个流行且有希望的主题。在HOPG表面上TTF衍生物的超分子结构的研究在分子电子学中的实际应用领域中起着越来越重要的作用。最重要的是，扫描隧道显微镜（STM）具有原位扫描的优势，实时和原子级的分辨率。它在研究固体表面自组装以揭示靶分子的构象和排列方面起着不可替代的作用。从这个角度出发，我们主要描述了HOPG表面TTF衍生物自组装的进展。在整个研究过程中，它们的分子间相互作用有助于超分子结构的构建。另外，相互作用的强度在很大程度上取决于化学结构。