. sigma.,. pi.* Charge-transfer excited states of substituted (phenylethynyl) pentamethyldisilanes

KA Horn, RB Grossman, JRG Thorne…

文献索引：Horn, Keith A.; Grossman, Robert B.; Thorne, Jonathan R. G.; Whitenack, Anne A. Journal of the American Chemical Society, 1989 , vol. 111, # 13 p. 4809 - 4821

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被引用次数: 39

摘要

Abstract: A series of substituted (arylethynyl) pentamethyldisilanes was prepared by the palladium (0)-catalyzed coupling of aryl halides and ethynylpentamethyldisilane. The absorption and emission spectra of these acetylenic disilanes were measured over the temperature range from 296 to 77 K in both polar and nonpolar solvents and rigid organic glasses. At 77 K normal'(n, n*) fluorescence and 3 (n, n*) phosphorescence are observed ...