| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Observation of Simplest Water Chains on Surface Stabilized by a Hydroxyl Group at One End |
| An-Ning Dong1,2,5, Li-Huan Sun1,2, Xiang-Qian Tang1,2, Yi-Kun Yao1,2, Yang An1,2, Dong Hao1,2, Xin-Yan Shan1**, Xing-Hua Lu1,2,3,4** |
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190
3Collaborative Innovation Center of Quantum Matter, Beijing 100190
4Songshan Lake Materials Laboratory, Dongguan 523808
5Engineering Technology Department, Zolix Instruments Co. Ltd, Beijing 101102
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| Cite this article: |
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An-Ning Dong, Li-Huan Sun, Xiang-Qian Tang et al 2019 Chin. Phys. Lett. 36 116801 |
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Abstract 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.
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Received: 09 July 2019
Published: 21 October 2019
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| PACS: |
68.37.Ef
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(Scanning tunneling microscopy (including chemistry induced with STM))
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68.43.Fg
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(Adsorbate structure (binding sites, geometry))
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82.65.+r
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(Surface and interface chemistry; heterogeneous catalysis at surfaces)
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| Fund: 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. |
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