Recording the intramolecular deformation of a 4-legs molecule during its STM manipulation on a Cu(211) surface

被引：32

作者：

Alemani, M

Gross, L

Moresco, F

Rieder, KH

Wang, C

Bouju, X

Gourdon, A

Joachim, C

机构：

[1] CNRS, CEMES, Nanosci Grp, F-31055 Toulouse 4, France

[2] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 402卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2004.12.026

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：

A Lander molecule is a polyaromatic molecular board supported by four legs. By means of a low-temperature scanning tunneling microscope (LT-STM), the controlled lateral manipulation in constant height mode of this molecule adsorbed on the Cu(2 1 1) surface is studied. Simulations based on elastic scattering quantum chemistry description combined with molecular mechanics calculations reproduce the STM current recorded during the manipulation. We demonstrate that the main tunneling current is flowing through the central molecular wire even if the STM tip is pushing only on a leg of the molecule. The measured signal of manipulation results principally from the mechanical deformation of the molecular board. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：180 / 185

页数：6

共 22 条

[1] Basic steps of lateral manipulation of single atoms and diatomic clusters with a scanning tunneling microscope tip [J].