标题：Facile synthesis of σ-π Conjugated organosilicon polymers via Click polymerization
作者：Wang, Y.;Wang, D.;Han, J.;Feng, S.
作者机构：[Wang, Y] Key Laboratory of Special Functional Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, China;[ Wang, D] Key L 更多
通讯作者地址：[Feng, SY]Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Peoples R China.
来源：Journal of Organometallic Chemistry
关键词：σ-π conjugation;Click chemistry;Optical property;Organosilicon polymer
摘要：Poly[silylene-(1,2,3-triazol-4-yl)-1,4-phenylene]s have been prepared via Cu(I)-catalyzed Azides and Alkynes Cycloaddition (CuAAC) polymerization from diethynylsilanes and 1,4-diazidobenzene. The organosilicon units contribute to electronic transitions between the π-conjugated units, as well as improving the solubility and processability of the polymers. Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance spectroscopy (NMR) have been utilized to confirm the structure of these polymers. The UV-visible spectra of polymers show almost identical absorption at around 270 nm. The fluorescence emission in CHCl_3 solutions were observed as similar broad band in visible blue region (ca. 430 nm). The quantum yields (Φ) were ranged from 0.19 to 0.37. The optical properties support the σ-π conjugation of the silylene and aromatic heterocycle groups, and the substituents on silicon atoms have negligible effect on the photoproperties.