Tuning the Planarity of an Aromatic Thianthrene-Based Molecule on Au(111)

被引：0

作者：

Au-Yeung, Kwan Ho ^{[1
]}

Sarkar, Suchetana ^{[1
]}

Haldar, Sattwick ^{[2
]}

Das, Pranjit ^{[1
]}

Kuehne, Tim ^{[1
]}

Ryndyk, Dmitry A. ^{[3
,4
,5
]}

Bhauriyal, Preeti ^{[4
]}

Kaskel, Stefan ^{[2
]}

Heine, Thomas ^{[4
]}

Cuniberti, Gianaurelio ^{[3
]}

Schneemann, Andreas ^{[2
]}

Moresco, Francesca ^{[1
]}

机构：

[1] Ctr Adv Elect Dresden, TU Dresden, D-01062 Dresden, Germany

[2] Inorgan Chem I, TU Dresden, D-01062 Dresden, Germany

[3] Inst Mat Sci Agh, TU Dresden, D-01062 Dresden, Germany

[4] Theoret Chem, TU Dresden, D-01062 Dresden, Germany

[5] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2024年 / 128卷 / 04期

关键词：

MANIPULATION;

D O I：

10.1021/acs.jpcc.3c07633

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nonplanar aromatic molecules are interesting systems for organic electronics and optoelectronics applications due to their high stability and electronic properties. By using scanning tunneling microscopy and spectroscopy, we investigated thianthrene-based molecules adsorbed on Au(111), which are nonplanar in the gas phase and the bulk solid state. Varying the molecular coverage leads to the formation of two different kinds of self-assembled structures: close-packed islands and quasi-one-dimensional chains. We found that the molecules are nonplanar within the close-packed islands, while the configuration is planar in the molecular chain and for single adsorbed molecules. Using vertical tip manipulation to isolate a molecule from the island, we demonstrate the conversion of a nonplanar molecule to its planar configuration. We discuss the two different geometries and their electronic properties with the support of density functional theory calculations.

引用

页码：1855 / 1861

页数：7