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题名: Adsorption of ethanediamine on colloidal silver: A surface-enhanced raman spectroscopy study combined with density functional theory calculations
作者: Hu, Gengshen;  Feng, Zhaochi;  Li, Jun;  Jia, Guoqing;  Han, Difei;  Liu, Zhimin;  Li, Can
通讯作者: 李灿
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2007-08-02
DOI: 10.1021/jp071066k
卷: 111, 期:30, 页:11267-11274
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The adsorption of ethanediamine on the colloidal silver surface has been studied by means of surface-enhanced Raman spectroscopy ( SERS) combined with density functional theory ( DFT) calculations. It is deduced from the SERS results that ethanediamine adsorbs on colloidal silver via its two N atoms. The calculation results suggest that the two N atoms of ethanediamine are bound to the same silver atom rather than different silver sites and ethanediamine prefers to absorb on the positively charged sites. Charge transfer between ethanediamine and the silver surface was probed by using SCN(-) as the probe molecule. The C equivalent to N stretching mode of SCN(-)adsorbed on a silver surface shifts from 2133 down to 2120 cm(-1) in the presence of ethanediamine, indicating that the charge transfer is from ethanediamine to the silver surface, which is further confirmed by DFT calculations. The ethanediamine adsorption mechanism on silver may shed light on the asymmetric catalysis involving 1,2-diamine ligands coordinated on transition metals.
关键词[WOS]: ASYMMETRIC TRANSFER HYDROGENATION ;  AB-INITIO ;  AROMATIC KETONES ;  VIBRATIONAL FREQUENCIES ;  CONFORMATIONAL-ANALYSIS ;  DISTANCE DEPENDENCE ;  METAL COLLOIDS ;  SCATTERING ;  COMPLEXES ;  SERS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000248316000019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99681
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Hu, Gengshen,Feng, Zhaochi,Li, Jun,et al. Adsorption of ethanediamine on colloidal silver: A surface-enhanced raman spectroscopy study combined with density functional theory calculations[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(30):11267-11274.
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