Perfluorophenyl-Phenyl Interactions in the Crystallization and Topochemical Polymerization of Triacetylene Monomers
作者:Rui Xu、W. Bernd Schweizer、Holger Frauenrath
DOI:10.1002/chem.200900985
日期:2009.9.14
structures and topochemical polymerizability. Single‐crystal structures for several of these triacetylene monomers have been obtained and proved that the perfluorophenyl–phenyl interactions played a decisive role in the molecular packing. As a consequence of the geometric requirements imposed by the perfluorophenyl–phenyl interactions, packing parameters appropriate for a topochemical triacetylene polymerization
制备了一系列带有苯甲酰基,4-十二烷基氧基苯甲酰基和全氟苯甲酰基取代基的对称和不对称取代的octa-2,4,6-triyne-1,8-二醇衍生物,并对其晶体结构和拓扑化学可聚合性进行了研究。已经获得了其中的一些三乙炔单体的单晶结构,并证明了全氟苯基与苯基的相互作用在分子堆积中起着决定性的作用。由于全氟苯基-苯基相互作用对几何形状的要求,在两种情况下,观察到了适合拓扑化学三乙炔聚合的填充参数,即沿不同结晶轴的1,6-或1,4-聚加成。紫外线照射导致聚合成功。拉曼以及固态所得聚合物的13 C NMR光谱表明,聚合反应主要以1,4-加聚的形式进行。