Synthesis, characterization, and solid-state polymerization of cross-conjugated octatetraynes
作者:Yuming Zhao、Thanh Luu、Guy M. Bernard、Tyler Taerum、Robert McDonald、Roderick E. Wasylishen、Rik R. Tykwinski
DOI:10.1139/v2012-075
日期:2012.11
6d) have been examined by X-ray crystallographic analysis. Parallel packing of the polyynes in the solid state indicates that four of the five samples are potentially suitable for topochemical polymerization, based on solid-state packing parameters θ, R, and d. Attempts to effect a solid-state reaction have been explored through UV–vis and γ-ray irradiation as well as thermal heating. The course of
已经合成了两个系列的交叉共轭 1,3,5,7-辛四炔(1a-1l 和 6a-6d)。紫外-可见光谱分析表明,连接到交叉共轭骨架的悬垂基团对 λmax 能量几乎没有影响,无论这些基团是吸电子还是供电子。许多分离的产物很容易得到适用于 X 射线晶体学的晶体,五种衍生物(1k、1l、6a、6c 和 6d)的固态结构特性已通过 X 射线晶体学分析进行了检查。基于固态堆积参数 θ、R 和 d,固态聚炔的平行堆积表明五个样品中的四个可能适用于拓扑化学聚合。已经通过紫外线-可见光和 γ 射线照射以及热加热探索了实现固态反应的尝试。这些反应的过程通过差示扫描量热法 (DSC) 分析以及 UV-vis 和固态 13C NMR 光谱...