Two diastereoisomeric N-doped nanographene derivatives have been efficiently prepared in two synthetic steps starting from an ethynylated hexaazatriphenylene building block. The first derivative adopts a D3 -symmetrical propeller-shaped structure with three equivalent nanographene foils. The structure of the second diastereoisomer is C2 -symmetrical and differs from the first one by the way two peripheral nanographene foils overlap. Owing to their intertwined structures, the two N-doped nanographenes are soluble in organic solvents and could be characterized by a combination of several analytical tools. Resolution of the D3 -symmetrical derivative has been achieved and CD measurements revealed extremely strong Cotton effects.
Keywords: azaarene; chirality; nanographene; polycyclic aromatic compounds; twisted molecules.
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