Polymers containing backbone acetylene, anthracene and tetra-, penta- or hexa-coordinate silicon units: UV–visible, photoluminescence and solution χ(3) non-linear optical properties
作者:William E. Douglas、Daniel M. H. Guy、Ajoy K. Kar、Changhai Wang
DOI:10.1039/a805518a
日期:——
Poly(aryleneethynylenesilylene)s of general structure (CCSiR2CCX)n (X = 9,10-anthrylene) containing tetra-, penta- or hexa-coordinate silicon exhibit high Ï(3) values, the absorbance and emission spectra being red-shifted with respect to those for the corresponding monomers R2Si- (CCAr)2 (Ar = 9-anthryl); these properties are consistent with extensive through-Si conjugation along the backbone.
具有一般结构 (CCSiR2CCX)n(X = 9,10-蒽基)的聚(芳基乙炔基硅基),其中硅原子具有四、五或六配位,表现出高的一阶非线性光学系数(Ï(3)值),其吸收和发射光谱相对于相应单体 R2Si-(CCAr)2(Ar = 9-蒽基)发生了红移;这些性质与沿着主链的通过硅的大量共轭相一致。