Chemistry Letters

UV Absorption and Fluorescence Properties of Pyrene Derivatives Having Trimethylsilyl, Trimethylgermyl, and Trimethylstannyl Groups.

H Maeda, Y Inoue, H Ishida, K Mizuno

Index: Maeda, Hajime; Inoue, Yohtaro; Ishida, Hideki; Mizuno, Kazuhiko Chemistry Letters, 2001 , # 12 p. 1224 - 1225

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Citation Number: 58

Abstract

UV absorption maxima of trimethylsilyl-, trimethylgermyl-, and trimethylstannyl-substituted pyrenes shifted to longer wavelength than that of unsubstituted pyrene. Absorption maxima of mono-, bis-, tris-, and tetrakis (trimethylsilyl) pyrenes shifted to longer wavelength consecutively at intervals of 10 nm. Fluorescence intensities and lifetimes decreased in the order of Me 3 SiAr> Me 3 GeAr> Me 3 SnAr. Fluorescence intensity of 1, 3, 6, 8-tetrakis ( ...