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题名: Crystal Structure and Optical Properties of the [Ag62S12(SBut)(32)](2+) Nanocluster with a Complete Face-Centered Cubic Kernel
作者: Jin, Shan1, 2;  Wang, Shuxin1, 2;  Song, Yongbo1, 2;  Zhou, Meng3, 4;  Zhong, Juan;  Zhang, Jun1, 2, 5;  Xia, Andong3, 4;  Pei, Yong5;  Chen, Man1, 2;  Li, Peng1, 2;  Zhu, Manzhou1, 2
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2014-11-05
DOI: 10.1021/ja506773d
卷: 136, 期:44, 页:15559-15565
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The crystal structure of the [Ag62S12(SBut)32](2+) nanocluster (denoted as NC-I) has been successfully determined, and it shows a complete face-centered-cubic (FCC) Ag14 core structure with a Ag-48(SBut)32 shell configuration interconnected by 12 sulfide ions, which is similar to the [Ag62S13(SBut)32](4+) structure (denoted as NC-II for short) reported by Wang. Interestingly, NC-I exhibits prominent differences in the optical properties in comparison with the case of the NC-II nanocluster. We employed femtosecond transient absorption spectroscopy to further identify the differences between the two nanoclusters. The results show that the quenching of photoluminescence in NC-I in comparison to that of NC-II is caused by the free valence electrons, which dramatically change the ligand to metal charge transfer (LMCT, S 3p -> Ag 5s). To get further insight into these, we carried out time-dependent density functional theory (TDDFT) calculations on the electronic structure and optical absorption spectra of NC-I and NC-II. These findings offer a new insight into the structure and property evolution of silver cluster materials.
关键词[WOS]: SILVER CLUSTERS ;  GOLD NANOPARTICLE ;  AU-25 CLUSTERS ;  THIOLATE ;  SOLVATION ;  INTERPLAY ;  MAGNETISM ;  DYNAMICS ;  METAL ;  STATE
语种: 英语
WOS记录号: WOS:000344516600025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145680
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.Anhui Univ, Dept Chem, Hefei 230601, Anhui, Peoples R China
2.Anhui Univ, Ctr Atom Engn Adv Mat, Hefei 230601, Anhui, Peoples R China
3.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
5.Xiangtan Univ, Minist Educ, Dept Chem, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Hunan, Peoples R China

Recommended Citation:
Jin, Shan,Wang, Shuxin,Song, Yongbo,et al. Crystal Structure and Optical Properties of the [Ag62S12(SBut)(32)](2+) Nanocluster with a Complete Face-Centered Cubic Kernel[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2014,136(44):15559-15565.
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