研究室工作進展January 31, 2009
Star-shaped Silacyclobutene-Containing π-Systems:
Synthesis and Optical Properties
Junhui Liu, Shaoguang Zhang, Wen-Xiong Zhang, and Zhenfeng Xi*.
Organometallics 2009, 28, 413-417
Well-defined π-conjugated systems containing two or three silacyclobutene units have been synthesized in high yields via regioselective coupling of bis(phenylethynyl)silanes with dialkynylbenzene or trialkynylbenzene in the presence of Cp2ZrBu2. The UV-vis absorption and fluorescence spectra of these new π-conjugated systems have demonstrated that the increase in silacyclobutene units per molecule from two or three brings about an increase of the extinction coefficient.
從單炔基苯、二炔基苯或三炔基苯以及二炔基矽烷出發，以較高産率合成了以苯為核、結構中含有一個、兩個和三個矽雜環丁烯骨架的共轭有機矽分子。随着分子中矽雜環丁烯骨架的增加，這類化合物的紫外吸收與熒光效率均有顯著的提高。