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Experimental and Theoretical Study on the Photophysical Properties of 90 degrees and 60 degrees Bimetallic Platinum Complexes
Chen, Jun-Sheng1,2; Zhao, Guang-Jiu1; Cook, Timothy R.3; Sun, Xiao-Fei1; Yang, Song-Qiu1; Zhang, Ming-Xing1; Han, Ke-Li1; Stang, Peter J.3
刊名JOURNAL OF PHYSICAL CHEMISTRY A
2012-10-11
DOI10.1021/jp3072475
116期:40页:9911-9918
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
关键词[WOS]DENSITY-FUNCTIONAL THEORY ; CHARGE-TRANSFER ; ELECTRONIC-STRUCTURE ; MOLECULAR DESIGN ; FLUORESCENCE ; STATE ; POLYMETALLAYNES ; RECTANGLES ; ASSEMBLIES ; TURBOMOLE
英文摘要The 90 degrees and 6 degrees bimetallic platinum complexes with special structures are widely used in coordination-driven self-assembled metallosupramolecular architectures, and these complexes are the key components of triangular, rectangular, and polygonal metallacycle and metallocage supramolecules. Therefore, spectroscopic techniques and quantum chemistry calculations were employed in this article to investigate the photophysical properties of these bimetallic platinum complexes. Compared with spectra for the ligands, the absorption spectra of these Pt complexes are red-shifted, and the fluorescence spectra become wider and are also red-shifted. Moreover, the reasons for the low fluorescence quantum yields and short fluorescence lifetimes of these compounds were investigated using quantum chemistry calculations. We demonstrate that the fluorescent states of the bimetallic platinum complexes can be considered as local excited states, and that they possess a ligand-centered pi-pi* transition feature. Meanwhile, the platinum metals act as perturbation for these transitions, whereas the nonfluorescent states are classified as intramolecular charge-transfer states. Furthermore, a new fluorescence modulation mechanism is developed to explain the different emission processes of these complexes with different ligands.
语种英语
WOS记录号WOS:000309648800016
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143082
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA
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Chen, Jun-Sheng,Zhao, Guang-Jiu,Cook, Timothy R.,et al. Experimental and Theoretical Study on the Photophysical Properties of 90 degrees and 60 degrees Bimetallic Platinum Complexes[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2012,116(40):9911-9918.
APA Chen, Jun-Sheng.,Zhao, Guang-Jiu.,Cook, Timothy R..,Sun, Xiao-Fei.,Yang, Song-Qiu.,...&Stang, Peter J..(2012).Experimental and Theoretical Study on the Photophysical Properties of 90 degrees and 60 degrees Bimetallic Platinum Complexes.JOURNAL OF PHYSICAL CHEMISTRY A,116(40),9911-9918.
MLA Chen, Jun-Sheng,et al."Experimental and Theoretical Study on the Photophysical Properties of 90 degrees and 60 degrees Bimetallic Platinum Complexes".JOURNAL OF PHYSICAL CHEMISTRY A 116.40(2012):9911-9918.
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