Reverse Arene Sandwich Structures Based upon π‐hole•••[MII] (d8M = Pt, Pd) Interactions, where Positively Charged Metal Centers Play the Role of a Nucleophile

The complexes [Pt(tpp)] (M = Pt; H2tpp = tetraphenyl‐porphyrin), [M(acac)2] (M = Pd, Pt, Hacac = acetylacetone), and [Pd(ba)2] (Hba = benzoylacetone) were co‐crystallized with highly electron‐deficient arene systems to form reverse arene sandwich structures built by π‐hole•••[MII] (d8M = Pt, Pd) interactions. The adduct [Pt(tpp)]•2C6F6 is monomeric, whereas the diketonate 1:1 adducts form columnar infinity 1D‐stack assembled by simultaneous action of both π‐hole•••[MII] and C–F interactions. The reverse sandwiches are based on noncovalent interactions and calculated ESP distributions indicate that in π‐hole•••[MII] contacts, [MII] plays the role of a nucleophile.

from A via a.sfakia on Inoreader http://bit.ly/2sFR9bx