Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China.
Adv Mater. 2016 Dec;28(47):10492-10498. doi: 10.1002/adma.201602131. Epub 2016 Sep 15.
Gold-organic hybrids can be prepared on gold substrates by on-surface dehalogenation of molecular precursors with multiple halogen substituents. Various contact geometries of covalent arylAu bonds are achieved by changing the halogen substituents in the bay or peri regions. Scanning tunneling microscopy/spectroscopy (STM/STS) investigations allow a better understanding of the structure/property relationships in various gold-aryl contacts. Recent progress on the synthesis, large-scale alignment, and STS measurement of gold-organic hybrids is described, ending with an emphasis on potential future applications, e.g., as precursors (intermediates) for the synthesis of graphene nanoribbons (GNRs) on insulating surfaces, and as a model system to investigate the role of covalent arylAu bonds in electron transport through gold-GNR contacts.
金-有机杂化物可以通过表面上具有多个卤素取代基的分子前体的脱卤反应在金基底上制备。通过改变苯并或周位区域中的卤素取代基，可以实现共价芳基Au 键的各种接触几何形状。扫描隧道显微镜/光谱学（STM/STS）研究有助于更好地理解各种金-芳基接触中的结构/性质关系。本文描述了金-有机杂化物的合成、大规模取向和 STS 测量的最新进展，最后强调了潜在的未来应用，例如作为在绝缘表面上合成石墨烯纳米带（GNRs）的前体（中间体），以及作为研究共价芳基Au 键在金-GNR 接触中电子输运作用的模型体系。
