A tetra-armed cyclen (L) with phenylethynylmethyl groups as side-arms forms L·CH3CN inclusion crystals from acetonitrile–organic mixed solvents with high selectivity.
Crystallization of a bent-shaped host compound having nitrophenol moieties afforded inclusion crystals with network structures consisting of tetrameric H-shaped assemblies through π⋯π interactions.
Water-mediated hydrogen-bonded structures were built from a disubstituted adamantane with dimethoxyphenol moieties, where halobenzenes were accommodated within the cavity of cyclic dimers composed of host compounds and waters.
One ketone or ester guest molecule was captured by multiple disubstituted adamantane units having nitrophenol moieties through multiple intermolecular interactions including OH⋯O and CH⋯O interactions.
Various active ions substituted C12A7 correspond to different chemical application.