摘要
本文采用透射电镜。电子衍射等技术,研究了由Fe(P_(507)_3**/Al(i—Bu)3体系催化所得顺式聚乙炔的晶体结构。在上述聚乙炔样品的电子选区衍射划程中,观察到明显的。具有单晶特征的点衍射。通过分析点衍射图并结合其他实验结果,认为此聚乙炔属斜方晶系,其晶胞参数为a=0.618nm,b=0.488nm,c=0.845nm,Z=6,ρ=1.
The crystal structure of cis-polyacetylene prepared with Fe(P507)3/Al(i-Bu)3 catalyst system has been investigated by using transmission electron microscope and electron diffraction techniques. The typical spot diagram of single crystal was observed in the cis-PA sample. Analysis of the spot pattern combined with other results lead to the assignment of an orthorhombic unit cell structure probably with space group Pnam for the cis-PA crystal.
