Fig. 1: Synthetic route towards spiro-NGs.
From: Synthesis of zwitterionic open-shell bilayer spironanographenes
Synthetic pathway of tBu-substituted spiro-NG (4), partially graphitized intermediate 9 and fully graphitized donor–acceptor fluorine-substituted F-spiro-NG (10). Molecules are depicted in their planar configuration for clarity, but the structural aspects are discussed in detail in the main text. RT, room temperature; DMF, dimethylformamide.
