A novel supramolecular organic–inorganic adduct containing α-Keggin-type [PW₁₂O₄₀]³⁻anions and benzo-15-crown-5 molecules

Abstract

The structure of the title compound, tris­(hydro­xonium) μ12‐phosphato‐tetracosa‐μ2‐oxo‐dodecaoxododecatungsten hex­akis­(benzo‐15‐crown‐5)–methanol–water (1/1/1), (H3O)3[PW12O40]·6C14H20O5·CH3OH·H2O (where C14H20O5 is benzo‐15‐crown‐5), has been determined at 180 K. [PW12O40]3− anions are typical of α‐Keggin structures, and the [H3O·(C14H20O5)2]+ sandwich‐type moieties contain a large number of short O⋯O close contacts, suggesting strong hydrogen bonding within them.

Synthesis and Characterization of Nanocapsules with Shells Made up of Al13 Tridecamers

“…In the literature there are several reports about the possible interactions between tridecamers with the Keggin structure. − ,− Based on them, we constructed a very simple model where a central Al 13 tridecamer interacts with other four Al 13 tridecamers via the most external oxygen atoms, O4 (Figure ). Each one of these oxygen atoms was shared by two octahedra belonging to two different Al 13 tridecamers.…”