Building chessboard-like supramolecular structures on Au(111) surfaces. (28th August 2015)

• Record Type: Journal Article
• Authors: Dou, Ruifen; Yang, Yu; Zhang, Ping; Zhong, Dingyong; Fuchs, Harald; Wang, Yue; Chi, Lifeng
• Is Part Of: Nanotechnology. Volume 26:Number 38(2015)
• Publication Date: 2015-08-28
• Subjects: supramolecular structure -- self-assembly monolayer -- scanning tunneling microscopy; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/0957-4484/26/38/385601
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: We investigate an anthracene derivative, 3(5)-(9-anthryl) pyrazole (ANP), self-assembled on the Au(111) surface by means of scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. A chessboard-like network structure composed of ANP molecules is found, covering the whole Au(111) substrate. Our STM results and DFT calculations reveal that the formation of chessboard-like networks originates from a basic unit cell, a tetramer structure, which is formed by four ANP molecules connected through C–H…N hydrogen bonds. The hydrogen bonds inside each tetramer and the molecule-substrate interaction are fundamentally important in providing a driving force for formation of the supramolecular networks.