Visualization of Hydrogen Bonding and Associated Chirality in Methanol Hexamers

被引：42

作者：

Lawton, Timothy J. ^{[1
]}

Carrasco, Javier ^{[2
]}

Baber, Ashleigh E. ^{[1
]}

Michaelides, Angelos ^{[3
,4
]}

Sykes, E. Charles H. ^{[1
]}

机构：

[1] Tufts Univ, Dept Chem, Medford, MA 02155 USA

[2] CSIC, Inst Catalisis & Petroleoquim, E-28049 Madrid, Spain

[3] UCL, London Ctr Nanotechnol, Thomas Young Ctr, London WC1E 6BT, England

[4] UCL, Dept Chem, London WC1E 6BT, England

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 25期

基金：

英国工程与自然科学研究理事会; 欧洲研究理事会; 美国国家科学基金会;

关键词：

METAL-SURFACES; LIQUID METHANOL; MOLECULAR-DYNAMICS; ADSORPTION; CLUSTERS; AU(111); NETWORKS; WATER;

D O I：

10.1103/PhysRevLett.107.256101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a combination of scanning tunneling microscopy (STM) and density functional theory the hydrogen bond directionality and associated chirality of enantiopure clusters is visualized and controlled. This is demonstrated with methanol hexamers adsorbed on Au(111), which depending on their chirality, adopt two distinct molecular footprints on the surface. Controlled STM tip manipulations were used to interconvert the chirality of entire clusters and to break up metastable chain structures into hexamers.

引用

页数：5

共 40 条

[1] Two-Dimensional Crystal Engineering: A Four-Component Architecture at a Liquid-Solid Interface [J].