Abstract

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 C1 conformation in the solid state. Furthermore, the helicenes exhibit ambipolar transport characteristics in thin film transistors.

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