Fig. 2. (a) The asymmetric unit of CityU-26. Thermal ellipsoids are drawn at the 50% probability level. Hydrogen atoms and toluene molecules are omitted for clarity. The yellow, red, blue, and cyan balls represent sulfur atoms, oxygen atoms, nitrogen atoms, and boron atoms, respectively. (b) TTF-py monomer and the four BACT units to which it is connected in CityU-26. (c) A single nanobelt with a thickness of 28.65 Å in CityU-26.
