Coordination Preferences of Bowl‐Shaped Polyaromatic Hydrocarbons

Infinitene as two fused helicoidal trails of fused rings: evaluation of the magnetic behavior of [12]infinitene and anionic species displaying global aromaticity and antiaromaticity

“…35 The magnetic response of [12]infinitene revealing the characteristic shielding/deshielding regions from the overall looped structure provides an overall picture of short- and long-range anisotropy cones, which are useful in order to explain the anisotropy effect displayed by functional groups or molecules as an inherent behavior of the molecular species. 36,37 For curved structures such as corannulene and fullerene, anionic states are obtained upon reduction from metallic lithium among other alkali metals, 38–41 hence, in addition, the dianionic and tetranionic counterparts of [12]helicene are evaluated in terms of their magnetic response, in order to reveal the alternation between global aromatic and global antiaromatic character upon reduction for this structure. 42–46…”

[60]Fullerene‐Based Macrocycle Ligands

“…The curved p-systemsh aveb een shown to form metal complexes both at the concavea nd convex positions. [4] Anumber of heterosumanenes have been reported with heteroatomso nt he rim of the molecule. [5] Recently an azacorannulene with an itrogen atom on the rim was reported.…”