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  • 刘新 ( 副教授 )

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论文成果 当前位置: 中文主页 >> 科学研究 >> 论文成果
Supramolecular Photoinduced Electron Transfer between a Redox-Active Hexanuclear Metal-Organic Cylinder and an Encapsulated Ruthenium(II) Complex

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论文类型:期刊论文
第一作者:Yang, Lu
通讯作者:He, C; Guo, HM (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116023, Peoples R China.
合写作者:He, Cheng,Liu, Xin,Zhang, Jing,Sun, Hui,Guo, Huimin
发表时间:2016-04-04
发表刊物:CHEMISTRY-A EUROPEAN JOURNAL
收录刊物:SCIE、EI、PubMed
卷号:22
期号:15
页面范围:5253-5260
ISSN号:0947-6539
关键字:electron transfer; encapsulation; hydrogen; metal-organic cylinders; ruthenium
摘要:By using redox-active nickel(II) ions as the connect nodes, a hexanuclear metal-organic cylinder (Ni-YL) was achieved through self-assembly with a large cavity and an opening windows capable to accommodate guest molecules. The suitable cavity of Ni-YL provides an opportunity to encapsulate the anionic ruthenium bipyridine derivative [Ru(dcbpy)(3)] (dcbpy=2,2-bipyridine-4,4-dicarboxylic acid) as the photosensitizer for light-driven reactions. The host-guest behavior between Ni-YL and [Ru(dcbpy)(3)] was investigated by mass spectrometry, NMR spectroscopy, and computational studies, revealing an effective binding of the guest [Ru(dcbpy)(3)] within the cavity of Ni-YL. Optical experiments suggested a pseudo-intramolecular photoinduced electron transfer (PET) process between the [Ru(dcbpy)(3)] and the host Ni-YL, leading to an efficient light-driven hydrogen production based on this system. Control experiments with a mononuclear Ni complex as a reference photocatalyst and the inactive [Fe(dcbpy)(3)] as an inhibitor for comparison were also performed to confirm such a supramolecular photocatalysis process.

 

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