A Supramolecular Approach to Organic Alloys: Cocrystals and Three‐ and Four‐Component Solid Solutions of 1,4‐Diazabicyclo[2.2.2]octane and 4‐X‐Phenols (X=Cl, CH3, Br)

Triple play: The crystallization of 1,4-diazabicyclo[2.2.2]octane (A) with one, two, or three different 4-substituted phenols (B, C, D) leads to cocrystals (for example, AB2, left) or solid solutions (for example, A(B,C,D)2, right). The repeat units of these multicomponent organic solids are supramolecular assemblies of three molecules.