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Twisted N‐Doped Nano‐Graphenes: Synthesis, Characterization, and Resolution
Author(s) -
Hahn Uwe,
Maisonhaute Emmanuel,
Nierengarten JeanFrançois
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201805852
Subject(s) - diastereomer , characterization (materials science) , doping , derivative (finance) , materials science , resolution (logic) , nano , block (permutation group theory) , chirality (physics) , nanotechnology , crystallography , chemistry , stereochemistry , optoelectronics , physics , composite material , chiral symmetry , mathematics , geometry , nambu–jona lasinio model , quantum mechanics , artificial intelligence , quark , computer science , financial economics , economics
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 D 3 ‐symmetrical propeller‐shaped structure with three equivalent nanographene foils. The structure of the second diastereoisomer is C 2 ‐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 D 3 ‐symmetrical derivative has been achieved and CD measurements revealed extremely strong Cotton effects.