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题名: Intramolecular Charge Transfer and Solvation Dynamics of Thiolate-Protected Au-20(SR)(16) Clusters Studied by Ultrafast Measurement
作者: Zhou, Meng1, 2;  Vdovic, Silvije1, 2, 3;  Long, Saran1, 2;  Zhu, Manzhou4;  Yan, Linyin1, 2;  Wang, Yingying1, 2;  Niu, Yingli1, 2;  Wang, Xuefei1, 2;  Guo, Qianjin1, 2;  Jin, Rongchao4;  Xia, Andong1, 2
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2013-10-10
DOI: 10.1021/jp406336q
卷: 117, 期:40, 页:10294-10303
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: It is accepted that the monolayer ligand shell in monolayer-protected gold nanoclusters (MPCs) plays an important role in stabilizing the metal core structure. Previous reports have shown that the core and shell do not interact chemically, and very few studies investigating the intramolecular charge transfer (ICT) between the core and ligand shell in clusters have been reported. The underlying excited state relaxation mechanisms about the influence of solvents, the optically excited vibration, and the roles of the core and shell in charge transfer remain unknown to a large extent. Here we report a femtosecond transient absorption study of a Au-20(SR)(16) (R = CH2CH2Ph) cluster in toluene and tetrahydrofuran. The ICT from the outside shell to the inside core upon excitation in Au-20(SR)(16) is identified. The observed solvation-dependent oscillations in different solvents further confirm the photoinduced ICT formation in Au-20(SR)(16). The results provide a fundamental understanding of the structure-property relationships about the solvation-dependent core shell interaction in Au MPCs.
关键词[WOS]: GOLD CLUSTERS ;  RELAXATION DYNAMICS ;  OPTICAL-PROPERTIES ;  CRYSTAL-STRUCTURE ;  LUMINESCENCE ;  NANOCLUSTERS ;  STATE ;  NANOPARTICLES ;  FEMTOSECOND ;  EXCITATION
语种: 英语
WOS记录号: WOS:000326366900016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137989
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, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China
3.Inst Phys, Zagreb 10000, Croatia
4.Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA

Recommended Citation:
Zhou, Meng,Vdovic, Silvije,Long, Saran,et al. Intramolecular Charge Transfer and Solvation Dynamics of Thiolate-Protected Au-20(SR)(16) Clusters Studied by Ultrafast Measurement[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2013,117(40):10294-10303.
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