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题名: Synthesis and Properties of Axially Symmetrical Rigid Visible Light-Harvesting Systems Containing [60]Fullerene and Perylenebisimide
作者: Zhu, San-E1, 2;  Liu, Kai-Qing1, 2;  Wang, Xue-Fei3;  Xia, An-Dong4, 5;  Wang, Guan-Wu1, 2
刊名: JOURNAL OF ORGANIC CHEMISTRY
发表日期: 2016-12-16
DOI: 10.1021/acs.joc.6b02042
卷: 81, 期:24, 页:12223-12231
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Organic
研究领域[WOS]: Chemistry
英文摘要: Two visible light-harvesting perylenebisimide (PDI)-[60]fullerene (C-60) systems, dyad P1 with one C-60 unit and triad P2 with two C-60 units, have been synthesized. Both systems are axially symmetrical with a rigid biphenyl linker, ensuring a relatively fixed spatial distance between the donor and acceptor, preventing through-space interaction, and enhancing energy transfer. Steady-state and transient spectroscopy, electrochemistry, as well as theoretical calculations have been used to investigate the electrochemical and photophysical properties of the two systems. Steady-state and time-resolved spectroscopy demonstrate that the excited state is featured by an efficient intramolecular energy transfer from PDI to C-60. Then, the high efficient intrinsic intersystem crossing of C-60 eventually leads to the production of the triplet C60. The extensive visible light absorption of PDI in the range of 400650 nm and the final localization of the excited energy at the triplet C-60 make these compounds ideal singlet oxygen inducers. Further investigation shows that the photooxidation capability for both compounds is significantly enhanced with respect to either PDI or C-60 and even better than that of the commonly used triplet photosensitizer methylene blue (MB). The double C60 moieties in P2 display a better result, and the photooxidation efficiency of P2 increases 1.3- and 1.4-fold compared to that of P1 and MB, respectively. The combination of a light-harvesting unit with an intersystem crossing unit results in a highly efficient photooxidation system, which opens up a new way to triplet photosensitizer design.
关键词[WOS]: ORGANIC TRIPLET PHOTOSENSITIZERS ;  PHOTOPHYSICAL PROPERTIES ;  ELECTRON-TRANSFER ;  FULLERENE DYAD ;  ENERGY-TRANSFER ;  ANNIHILATION UPCONVERSIONS ;  PHOTOINDUCED CHARGE ;  C-60 DYADS ;  PORPHYRIN ;  TRI-9-ANTHRYLBORANE
语种: 英语
WOS记录号: WOS:000390180100015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151839
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.Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China

Recommended Citation:
Zhu, San-E,Liu, Kai-Qing,Wang, Xue-Fei,et al. Synthesis and Properties of Axially Symmetrical Rigid Visible Light-Harvesting Systems Containing [60]Fullerene and Perylenebisimide[J]. JOURNAL OF ORGANIC CHEMISTRY,2016,81(24):12223-12231.
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