TY - JOUR AU - David, Arthur H. G.; Míguez-Lago, Sandra; Cruz, Carlos M.; Cuerva, Juan M.; Blanco, Victor; Campaña, Araceli G. TI - Heptagon-Containing Saddle-Shaped Nanographenes: Self-Association and Complexation Studies with Polycyclic Aromatic Hydrocarbons and Fullerenes SN - 2625-1825 PY - 2021 JF - Organic Materials LA - EN VL - 03 IS - 01 SP - 051 EP - 059 DA - 2021/02/08 KW - nanographenes KW - contorted aromatics KW - supramolecular chemistry KW - host–guest systems KW - heptacyclic polyarenes KW - molecular recognition AB - Supramolecular interactions between molecules of the same or different nature determine to a great extent the degree of their applicability in many fields of science. To this regard, planar polycyclic aromatic hydrocarbons (PAHs) and their nanometric congeners, nanographenes (NGs), as well as positively curved ones, as for instance corannulene, have been extensively explored. However, negatively curved saddle-shaped NGs have remained a curiosity to date within this field. Therefore, here we communicate the first systematic study on the supramolecular behavior of heptagon-containing hexa-peri-hexabenzocoronene analogues. Thus, their self-association and host–guest complexation processes with both flat and curved PAHs, and fullerenes have been studied by means of 1H and 13C NMR titrations in solution, identifying C70 as one of the guests with the highest association constant among all the ones tested. PB - Georg Thieme Verlag KG DO - 10.1055/s-0041-1722848 UR - http://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0041-1722848 ER -