N‐doped and Bowl‐Shaped Azabenzo[3,4]azulenofluorene: Synthesis and Characterization of Bridged Aza‐Triarylamines.

Triarylamines are frequently employed as electron donor functional groups in a variety of organic electronic materials. We herein report the synthesis and in‐depth characterisation of aza‐analogues of fully bridged triarylamines, consisting of 5‐, 6‐ and 7‐membered rings. The impact of nitrogen doping and π‐extension on the structural, electronic and optical‐properties of these contorted heteroaromatic PAHs is thoroughly investigated and paves the way for an improved understanding of the structure‐property relationships. [ABSTRACT FROM AUTHOR]