关于十一环硫掺杂并九苯的表面合成

On surface synthesis of an eleven-ring sulfur-doped nonacene.

作者信息

Padniuk Irena, Stoica Otilia, Zuzak Rafal, Blieck Remi, Krawiec Mariusz, Godlewski Szymon, Echavarren Antonio M

机构信息

Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, Krakow PL 30-348, Poland.

Jagiellonian University, Doctoral School of Exact and Natural Sciences, Prof. St. Łojasiewicza St 11, PL30348, Cracow, Poland.

出版信息

Chem Commun (Camb). 2024 Jan 18;60(7):858-861. doi: 10.1039/d3cc05486a.

DOI:10.1039/d3cc05486a

PMID:38131529

Abstract

Dithienoacenes with a heptacene core, heptaceno[2,3-:11,12-']bis[1]benzothiophene, have been synthesized through the combination of solution and surface assisted chemistry. The atomic composition, structural arrangement and electronic properties of the molecules on the Au(111) surface have been deeply explored by non-contact atomic force microscopy (nc-AFM), bond-resolved scanning tunnelling microscopy (BR-STM) and scanning tunneling spectroscopy (STS) corroborated by density functional theory (DFT) calculations. Our combined experiments reveal modifications induced by sulfur substitution.

摘要

具有并七苯核心的二噻吩并并七苯，即并七苯并[2,3-:11,12-']双[1]苯并噻吩，已通过溶液化学与表面辅助化学相结合的方法合成。通过非接触原子力显微镜（nc-AFM）、键分辨扫描隧道显微镜（BR-STM）和扫描隧道谱（STS），并结合密度泛函理论（DFT）计算，深入探究了金（111）表面分子的原子组成、结构排列和电子性质。我们的联合实验揭示了硫取代引起的结构变化。