Water as a building block in solid-state acetonitrile-pyrogallol[4]arene assemblies: structural investigations

Under various conditions, water molecules dramatically affect a number of solid-state C-alkylpyrogallol[4]arene assemblies. In the absence of water, hydrogen-bonded hexameric capsules are formed for the C-butyl, pentyl, hexyl, and heptyl pyrogallol[4]arenes. Introduction of water to acetonitrile solutions containing C-propyl-C-octylpyrogallol [4] arenes resulted in the formation of markedly different bilayer structures and the structural identification of two new dimer-type motifs.