An alternative convergent synthesis of dendrimers with 2,5-diarylsilole at the core

被引：15

作者：

Sanji, Takanobu ^{[1
]}

Kanzawa, Tomofumi ^{[1
]}

Tanaka, Masato ^{[1
]}

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2007年 / 692卷 / 22期

关键词：

convergent; dendrimer; energy transfer; fluorescence; Ni-catalyzed reaction; silote;

D O I：

10.1016/j.jorganchem.2007.07.037

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Dendrimers with 2,5-diarylsilole at the core are readily synthesized by the Ni-catalyzed reaction of 1, 1,2,2-tetramethyldisilane and 1,6-diynes having poly(benzyl ether)-dendron units. The dendrimers display, upon excitation of the silole ring, an emission at about 500 nm. The fluorescence quantum yield of the dendrimers increases with increasing the generation of the dendron units. In addition, upon excitation of dendron units in the periphery, the dendrimers also display an emission from the silole ring at the core through the energy transfer from the dendron units to the silole core within the dendrimers. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：5053 / 5059

页数：7

共 62 条

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