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Unprecedented 1D Mixed-metal Polynuclear Cyclometalated Platinum Complexes: Synthesis, Structural Characterization and Spectroscopic Properties 被引量:3
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作者 曹迁永 甘欣 +3 位作者 张俊峰 迟绍明 李慧方洁 傅文甫 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2007年第12期1821-1826,共6页
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,... 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. 展开更多
关键词 platinum(Ⅱ) LITHIUM mixed-metal polynuclear complex cyclometallating ligand metal-metal interaction spectroscopy
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