| Structure of self-assembled monolayer of NPAN on Au(111) electrode |
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| 作者姓名： | YANG Guangzheng ZENG Qingdao WAN Lijun & BAI Chunli . Institute of Chemistry Chinese Academy of Sciences |
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| 作者单位： | YANG Guangzheng1，2，ZENG Qingdao1，WAN Lijun1 & BAI Chunli1 1. Institute of Chemistry，Chinese Academy of Sciences (CAS)，Beijing 100080，China; 2. Graduate School of CAS，Beijing 100080，China Correspondence should be addressed to Wan Lijun or Bai Chunli (e-mail: wanlijun@infoc3.icas.ac.cn) |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划)，中国科学院资助项目 |
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| 摘 要： | Recently, much attention has been paid to the self-assembled monolayers (SAMs) or Langmuir-Blodgett films (LB films) of molecules bearing azobenzene group on the surface. Azobenzene derivatives are attractive ow-ing to their interesting photoresoponsive behavior1—5]. Azobenzene and its derivatives take both trans (E) and cis (Z) structures with respect to the azo linkage and normally exist in the more stable trans form6]. Being irradiated with appropriate light, organic molecules and po…
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Structure of self-assembled monolayer of NPAN on Au(111) electrode |
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| YANG Guangzheng,,ZENG Qingdao,WAN Lijun & BAI Chunli . Institute of Chemistry,Chinese Academy of Sciences.Structure of self-assembled monolayer of NPAN on Au(111) electrode[J].Chinese Science Bulletin,2003,48(18):1952-1955. |
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| Authors: | Guangzheng Yang Qingdao Zeng Lijun Wan Chunli Bai |
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| Institution: | YANG Guangzheng1,2, ZENG Qingdao1, WAN Lijun1 & BAI Chunli1 1. Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100080, China; 2. Graduate School of CAS, Beijing 100080, China Correspondence should be addressed to Wan Lijun or Bai Chunli (e-mail: wanlijun@infoc3.icas.ac.cn) |
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| Abstract: | Adsorption of 4-(4-nitrophenylazo)-1-naphthol (NPAN), an azobenzene derivative, on Au(111) has been investigated in aqueous HClO4 solution by using the cyclic voltammetry and scanning tunneling microscopy (STM). The molecule is found to form a stable monolayer on the electrode with a (6×4) structure relative to the underlying Au(111) lattice. Cyclic voltammograms show that the redox reactions occurring on the electrode are retarded by the formation of the monolayer. A structural model is proposed for the two-dimensional adlayer. |
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| Keywords: | Au(111) azobenzene self-assembled monolayer STM |
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