作者:Wenhui Niu、Yubin Fu、Hartmut Komber、Ji Ma、Xinliang Feng、Yiyong Mai、Junzhi Liu
DOI:10.1021/acs.orglett.1c00232
日期:2021.3.19
this work, we describe the synthesis and characterization of three novel sulfur-doped nanographenes (NGs) (1–3) containing multiple subhelicenes, including carbo[4]helicenes, thieno[4]helicenes, carbo[5]helicenes, and thieno[5]helicenes. Density functional theory calculations reveal that the helicene substructures in 1–3 possess dihedral angles from 15° to 34°. The optical energy gaps of 1–3 are estimated
在这项工作中,我们描述了包含多个亚螺旋的三个新型硫掺杂纳米石墨烯(NGs)(1-3)的合成和表征,包括碳[4]螺旋,硫杂环[4]螺旋,碳[5]螺旋和噻诺[5]螺旋。密度泛函理论计算表明,1-3中的螺旋烯亚结构具有15°至34°的二面角。1-3的光能隙估计分别为2.67、2.45和2.30 eV。与它们的原始碳类似物相比,这三种硫掺杂的NG显示出更大的能隙。