π-Expanded triple [5]helicenes bearing dibenzocoronene monoimide subunits.
Yan ChenRuihu ZhouXinyue LiuCao YangTingting WangFenghui ShiGuowei ZhangPublished in: Chemical communications (Cambridge, England) (2022)
Two novel π-expanded triple [5]helicenes containing three dibenzocoronene monoimide subunits have been synthesized and characterized. The helicenes exhibit low-energy conformational interconversions, as supported by NMR spectra. The single-crystal X-ray analysis reveals a C 1 conformation in the solid state. Furthermore, the helicenes exhibit ambipolar transport characteristics in thin film transistors.