Direct Probing of the Structure and Electron Transfer of Fullerene/Ferrocene Hybrid on Au(111) Electrodes by in Situ Electrochemical STM

doi:10.1021/ja411813r

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	Direct Probing of the Structure and Electron Transfer of Fullerene/Ferrocene Hybrid on Au(111) Electrodes by in Situ Electrochemical STM
	Chen, Ting 1,2; Wang, Dong 1,2; Gan, Li-Hua 5; Matsuo, Yutaka 4; Gu, Jing-Ying 1,2,3; Yan, Hui-Juan 1,2; Nakamura, Eiichi 4; Wan, Li-Jun 1,2
刊名	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
	2014-02-26
卷号	136 期号:8 页码:3184-3191
ISSN号	0002-7863
DOI	10.1021/ja411813r
英文摘要	The electron donor-acceptor dyads are an emerging class of materials showing important applications in nonlinear optics, dye-sensitized solar cells, and molecular electronics. Investigation of their structure and electron transfer at the molecular level provides insights into the structure property relationship and can benefit the design and preparation of electron donor acceptor dyad materials. Herein, the interface adstructure and electron transfer of buckyferrocene Fe(C60Me5)Cp, a typical electron donor-acceptor dyad, is directly probed using in situ electrochemical scanning tunneling microscopy (STM) combined with theoretical simulations. It is found that the adsorption geometry and assembled structure of Fe(C60Me5)Cp is significantly affected by the electrochemical environments. In 0.1 M HClO4 solution, Fe(C60Me5)Cp forms well-ordered monolayers and multilayers on Au(111) surfaces with molecular dimer as the building block. In 0.1 M NaClO4 solution, typical six-fold symmetric close-packed monolayer with vertically adsorbed Fe(C60Me5)Cp is formed. Upon electrochemical oxidation, the oxidized Fe(C60Me5)Cp shows higher brightness in an STM image, which facilitates the direct visualization of the interfacial electrochemical electron transfer process. Theoretical simulation indicates that the electrode potential-activated, one-electron transfer from Fe(C60Me5)Cp to the electrode leads to the change of the delocalization character of the frontier orbital in the molecule, which is responsible for the STM image contrast change. This result is beneficial for understanding the structure and property of single electron donor acceptor dyads. It also provides a direct approach to study the electron transfer of electron donor acceptor compounds at the molecular level.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000332144300043
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/50069]
专题	中国科学院化学研究所
通讯作者	Wang, Dong
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Univ CAS, Beijing 100049, Peoples R China 4.Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan 5.Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ting,Wang, Dong,Gan, Li-Hua,et al. Direct Probing of the Structure and Electron Transfer of Fullerene/Ferrocene Hybrid on Au(111) Electrodes by in Situ Electrochemical STM[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2014,136(8):3184-3191.
APA	Chen, Ting.,Wang, Dong.,Gan, Li-Hua.,Matsuo, Yutaka.,Gu, Jing-Ying.,...&Wan, Li-Jun.(2014).Direct Probing of the Structure and Electron Transfer of Fullerene/Ferrocene Hybrid on Au(111) Electrodes by in Situ Electrochemical STM.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,136(8),3184-3191.
MLA	Chen, Ting,et al."Direct Probing of the Structure and Electron Transfer of Fullerene/Ferrocene Hybrid on Au(111) Electrodes by in Situ Electrochemical STM".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 136.8(2014):3184-3191.