Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, 475004, China.
Org Lett. 2010 Feb 5;12(3):456-9. doi: 10.1021/ol902613g.
Bis(trimethylsilyl)benzohexathia[7]helicene 1, naphthalene cored double helicene 2 (the fused dimer of 1), and a novel ten-membered cyclic diketone with four moieties of dithieno[2,3-b:3',2'-d]thiophene (3) were efficiently synthesized. Their crystal structures were determined with single-crystal X-ray analysis. In their crystal packings, they all show multiple short contacts including intermolecular pi...pi, pi...S, and S...S interactions. UV/vis spectra indicate that significant pi-electron delocalization existed in 1, 2, and 3.
双(三甲基硅基)苯并六噻[7]轮烯 1、萘核双轮烯 2（1 的稠合二聚体）和一种新型的具有四个二噻吩[2,3-b:3',2'-d]噻吩部分的十元环状二酮 3 被有效地合成。它们的晶体结构通过单晶 X 射线分析确定。在它们的晶体堆积中，它们都显示了多种短接触，包括分子间的 pi...pi、pi...S 和 S...S 相互作用。紫外可见光谱表明 1、2 和 3 中存在显著的 pi 电子离域。
