摘要
The key to fully understanding water-solid interfaces relies on the microscopic nature of hydrogen bond networks,including their atomic structures, interfacial interactions, and dynamic behaviors. Here, we report the observation of two types of simplest water chains on Au(111) surface which is expected unstable according to the rules of hydrogen network on noble metal surfaces. A common feature at the end of chain structures is revealed in high resolution scanning tunneling microscopy images. To explain the stability in observed hydrogen bond networks,we propose a structure model of the water chains terminated with a hydroxyl group. The model is consistent with detailed image analysis and molecular manipulation. The observation of simplest water chains suggests a new platform for exploring fundamental physics in hydrogen bond networks on surfaces.
The key to fully understanding water-solid interfaces relies on the microscopic nature of hydrogen bond networks,including their atomic structures, interfacial interactions, and dynamic behaviors. Here, we report the observation of two types of simplest water chains on Au(111) surface which is expected unstable according to the rules of hydrogen network on noble metal surfaces. A common feature at the end of chain structures is revealed in high resolution scanning tunneling microscopy images. To explain the stability in observed hydrogen bond networks,we propose a structure model of the water chains terminated with a hydroxyl group. The model is consistent with detailed image analysis and molecular manipulation. The observation of simplest water chains suggests a new platform for exploring fundamental physics in hydrogen bond networks on surfaces.
作者
An-Ning Dong
Li-Huan Sun
Xiang-Qian Tang
Yi-Kun Yao
Yang An
Dong Hao
Xin-Yan Shan
Xing-Hua Lu
董安宁;孙丽欢;唐向前;姚一锟;安旸;郝东;单欣岩;陆兴华(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190;Collaborative Innovation Center of Quantum Matter,Beijing 100190;4Songshan Lake Materials Laboratory,Dongguan 523808;Engineering Technology Department,Zolix Instruments Co.Ltd,Beijing 101102)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 11774395 and 91753136
the Beijing Natural Science Foundation under Grant No 4181003
the Strategic Priority Research Program(B)of the Chinese Academy of Sciences under Grant Nos XDB30201000 and XDB28000000
