Surface-enhanced Raman spectroscopic study of p-aminothiophenol

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	Surface-enhanced Raman spectroscopic study of p-aminothiophenol
	Huang, Yi-Fan ; Wu, De-Yin ; Zhu, Hong-Ping ; Zhao, Liu-Bin ; Liu, Guo-Kun ; Ren, Bin ; Tian, Zhong-Qun ; Zhu HP(朱红平) ; Tian ZQ(田中群) ; Ren B(任斌)
刊名	http://dx.doi.org/10.1039/c2cp40558j
	2012
关键词	SELF-ASSEMBLED MONOLAYERS CHARGE-TRANSFER ENHANCEMENT CATALYTIC COUPLING REACTION DENSITY-FUNCTIONAL THEORY CONDON ACTIVE VIBRATIONS PARA-NITROBENZOIC ACID SILVER ISLAND FILMS SMOOTH AU SUBSTRATE SINGLE-MOLECULE GOLD NANOPARTICLES
英文摘要	Ministry of Science and Technology of China [2009CB930703, 2011YQ03012406]; Natural Science Foundation of China [20825313, 20620130427, 21021120456, 21021002]; p-aminothiophenol (PATP) is an important molecule for surface-enhanced Raman spectroscopy (SERS). It can strongly interact with metallic SERS substrates and produce very strong SERS signals. It is a molecule that has often been used for mechanistic studies of the SERS mechanism as the photon-driven charge transfer (CT) mechanism is believed to be present for this molecule. Recently, a hot debate over the SERS behavior of PATP was triggered by our finding that PATP can be oxidatively transformed into 4,4'-dimercaptoazobenzene (DMAB), which gives a SERS spectra of so-called "b(2) modes''. In this perspective, we will give a general overview of the SERS mechanism and the current status of SERS studies on PATP. We will then demonstrate with our experimental and theoretical evidence that it is DMAB which contributes to the characteristic SERS behavior in the SERS spectra of PATP and analyze some important experimental phenomena in the framework of the surface reaction instead of the contribution "b(2) modes''. We will then point out the existing challenges of the present system. A clear understanding of the reaction mechanism for nitrobenzene or aromatic benzene will be important to not only understand the SERS mechanism but to also provide an economic way of producing azo dyes with a very high selectivity and conversion rate.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62156]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Huang, Yi-Fan,Wu, De-Yin,Zhu, Hong-Ping,et al. Surface-enhanced Raman spectroscopic study of p-aminothiophenol[J]. http://dx.doi.org/10.1039/c2cp40558j,2012.
APA	Huang, Yi-Fan.,Wu, De-Yin.,Zhu, Hong-Ping.,Zhao, Liu-Bin.,Liu, Guo-Kun.,...&任斌.(2012).Surface-enhanced Raman spectroscopic study of p-aminothiophenol.http://dx.doi.org/10.1039/c2cp40558j.
MLA	Huang, Yi-Fan,et al."Surface-enhanced Raman spectroscopic study of p-aminothiophenol".http://dx.doi.org/10.1039/c2cp40558j (2012).