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题名: The Effect of Intermolecular Hydrogen Bonding on the Fluorescence of a Bimetallic Platinum Complex
作者: Zhao, Guang-Jiu1;  Northrop, Brian H.2;  Han, Ke-Li1;  Stang, Peter J.2
通讯作者: 韩克利 ;  P.J.Stang
刊名: JOURNAL OF PHYSICAL CHEMISTRY A
发表日期: 2010-09-02
DOI: 10.1021/jp105009t
卷: 114, 期:34, 页:9007-9013
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1101
产权排名: 1;1
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: The bimetallic platinum complexes are known as unique building blocks and arewidely utilized in the coordination-driven self-assembly of functionalized supramolecular metallacycles. Hence, photophysical study of the bimetallic platinum complexes will be very helpful for the understanding on the optical properties and further applications of coordination-driven self-assembled supramolecular metallacycles. Herein, we report steady-state and time-resolved spectroscopic experiments as well as quantum chemistry calculations to investigate the significant intermolecular hydrogen bonding effects on the intramolecular charge transfer (ICT) fluorescence of a bimetallic platinum compound 4,4'-bis(trans-Pt(PEt(3))(2)OTf)benzophenone 3 in solution. We demonstrated that the fluorescent state of compound 3 can be assigned as a metal-to-ligand charge transfer (MLCT) state. Moreover, it was observed that the formation of intermolecular hydrogen bonds can effectively lengthen the fluorescence lifetime of 3 in alcoholic solvents compared with that in hexane solvent. At the same time, the electronically excited states of 3 in solution are definitely changed by intermolecular hydrogen bonding interactions. As a consequence, we propose a new fluorescence modulation mechanism by hydrogen bonding to explain different fluorescence emissions of 3 in hydrogen-bonding solvents and nonhydrogen-bonding solvents.
关键词[WOS]: INTRAMOLECULAR CHARGE-TRANSFER ;  DENSITY-FUNCTIONAL THEORY ;  ASSEMBLED SUPRAMOLECULAR RECTANGLE ;  PROTEIN CHROMOPHORE MODELS ;  RESONANCE ENERGY-TRANSFER ;  EXCITED-STATE ;  PHOTOPHYSICAL PROPERTIES ;  2-PHOTON ABSORPTION ;  OPTICAL-EXCITATIONS ;  SELF-ORGANIZATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000281128900010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103305
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, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

Recommended Citation:
Zhao, Guang-Jiu,Northrop, Brian H.,Han, Ke-Li,et al. The Effect of Intermolecular Hydrogen Bonding on the Fluorescence of a Bimetallic Platinum Complex[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(34):9007-9013.
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