| Unprecedented 1D Mixed-metal Polynuclear Cyclometalated Platinum Complexes： Synthesis, Structural Characterization and Spectroscopic Properties |
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| 引用本文： | 曹迁永,甘欣,张俊峰,迟绍明,李慧方洁,傅文甫.Unprecedented 1D Mixed-metal Polynuclear Cyclometalated Platinum Complexes： Synthesis, Structural Characterization and Spectroscopic Properties[J].中国化学,2007,25(12):1821-1826. |
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| 作者姓名： | 曹迁永 甘欣 张俊峰 迟绍明 李慧方洁 傅文甫 |
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| 作者单位： | [1]College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, China [2]Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China |
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| 基金项目： | Projcct supportcd by thc National Natural Scicncc Foundation of China （Nos. 50463001, 20671094） and thc Statc Kcy Projcct of （No. 2005CCA06800）. |
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| 摘 要： | The complexes Pt2L2（μ-dppm）]（ClO4）2 （1） and {Pt2L2（μ-dppm）Li（CH3CN）2]（ClO4）3}n （2）, where HL is 6-4-（diethoxyphosphorylmethyl）phenyl]-2,2′-bipyridinyl and dppm is bis（diphenylphosphino）methane, have been synthesized and characterized. In complex 1 the platinum（Ⅱ） center adopts a distorted square planar coordination geometry. The polymer 2 exhibits a ＂stairstep＂ configuration with one-dimensional Pt（Ⅱ）N^N^CPO- Li（Ⅰ）-OPC^N^ NPt（Ⅱ） mixed-metal units which are linked through dppm. Both complexes have metal-metal interaction with Pt- Pt distances of 3.325（2） and 3.1432（9） A, respectively, and display strong metal-metal-to-ligand charge-transfer （MMLCT） triplet state emission. The density-functional-theory calculation was used to interpret the absorption spectra of the complexes.
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| 关 键 词： | 铂 锂 金属多环络合物 相互作用 光谱学 |
| 收稿时间： | 2006-05-16 |
| 修稿时间： | 2007-08-20 |
Unprecedented 1D Mixed‐metal Polynuclear Cyclometalated Platinum Complexes: Synthesis,Structural Characterization and Spectroscopic Properties |
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| CAO, Qian-Yong GAN, Xin ZHANG, Jun-Feng CHI, Shao-Ming LI, Hui-Fangjie FU, Wen-Fu.Unprecedented 1D Mixed‐metal Polynuclear Cyclometalated Platinum Complexes: Synthesis,Structural Characterization and Spectroscopic Properties[J].Chinese Journal of Chemistry,2007,25(12):1821-1826. |
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| Authors: | CAO Qian-Yong GAN Xin ZHANG Jun-Feng CHI Shao-Ming LI Hui-Fangjie FU Wen-Fu |
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| Institution: | 1. College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, China;2. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China;3. Tel.: 0086‐10‐82543519;4. Fax: 0086‐10‐62554670 |
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| Abstract: | The complexes Pt2L2(μ‐dppm)](ClO4)2 ( 1 ) and {Pt2L2(μ‐dppm)Li(CH3CN)2](ClO4)3}n ( 2 ), where HL is 6‐4‐(diethoxyphosphorylmethyl)phenyl]‐2,2′‐bipyridinyl and dppm is bis(diphenylphosphino)methane, have been synthesized and characterized. In complex 1 the platinum(II) center adopts a distorted square planar coordination geometry. The polymer 2 exhibits a "stairstep" configuration with one‐dimensional Pt(II)N?N?CPO‐ Li(I)‐OPC?N?NPt(II) mixed‐metal units which are linked through dppm. Both complexes have metal‐metal interaction with Pt–Pt distances of 3.325(2) and 3.1432(9) Å, respectively, and display strong metal‐metal‐to‐ligand charge‐transfer (MMLCT) triplet state emission. The density‐functional‐theory calculation was used to interpret the absorption spectra of the complexes. |
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| Keywords: | platinum(II) lithium mixed‐metal polynuclear complex cyclometallating ligand metal‐metal interaction spectroscopy |
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