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题名: Interfacial Clustering-Triggered Fluorescence-Phosphorescence Dual Solvoluminescence of Metal Nanoclusters
作者: Yang, Taiqun1, 2;  Dai, Shan2;  Yang, Songqiu3;  Chen, Li1;  Liu, Pengcheng1;  Dong, Kailong2;  Zhou, Jiasheng2;  Chen, Yuting2;  Pan, Haifeng2;  Zhang, Sanjun2, 4, 5;  Chen, Jinquan2;  Zhang, Kun1;  Wu, Peng1;  Xu, Jianhua2, 4
刊名: JOURNAL OF PHYSICAL CHEMISTRY LETTERS
发表日期: 2017-09-07
DOI: 10.1021/acs.jpclett.7b01736
卷: 8, 期:17, 页:3980-3985
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: The fluorescence-phosphorescence dual solvoluminescence (SL) of water-soluble metal nanoclusters (NCs) at room temperature was successfully achieved by a simple solvent-stimulated strategy. The strong interaction between carboxylate ligands and the metal core at the nanoscale interface not only induces rigid conformations of carbonyl groups but also affords a perfect carbonyl cluster that acts as an exact chromophore of metal NCs for aggregation-induced emission (ME) mechanics. The clustering of carbonyl groups bearing on the polymer backbone chain is promoted by newly discovered n -> pi* noncovalent interactions. The efficient delocalization of electrons in overlapped C=O double bonds between neighboring carbonyl groups triggered by strong n -> pi* interactions in the polymer cluster accounts for its unique SL properties, especially the abnormal phosphorescence. This was further confirmed by controlled experiments for the presence of intersystem crossing (ISC) transitions. The results provide novel insights for understanding the complex SL process and open up a new way to study the inherent mechanism of SL by broadening the application of metal NCs.
关键词[WOS]: AGGREGATION-INDUCED EMISSION ;  GOLD NANOCLUSTERS ;  CU NANOCLUSTERS ;  PROTEINS ;  TEMPERATURE ;  MECHANISM
语种: 英语
WOS记录号: WOS:000410600600006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/150142
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.East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China
2.East China Normal Univ, State Key Lab Precis Spect, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
4.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
5.NYU Shanghai, NYU ECNU Inst Phys, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China

Recommended Citation:
Yang, Taiqun,Dai, Shan,Yang, Songqiu,et al. Interfacial Clustering-Triggered Fluorescence-Phosphorescence Dual Solvoluminescence of Metal Nanoclusters[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2017,8(17):3980-3985.
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