A Hexagonal Shape-Persistent Nanobelt of Elongated Rhombic Symmetry with Orthogonal pi-Planes by a One-Pot Reaction

Triptycenes with their predefined D-3h-symmetry are excellent molecular building blocks to construct shape-persistent nanobelts having pi-orbitals orthogonal to the ring plane. However, up to now, there are only a very few examples of fused and rigid iptycene nanobelts synthesized in several consecutive steps in overall yields below 1 %. Here we present the simple one-step one-pot approach to an iptycene nanobelt, which forms in >2 % and can readily be isolated from the polymeric by-product by gel-permeation chromatography.