Polymorphism and porosity in 4-[(4-hydroxy-3,5-dimethylphenyl)(5-methyl-1H-imidazol-4-yl)methyl]-2,6-dimethylphenol†
Abstract
The structural aspects of the solvates and polymorphs of 4-[(4-hydroxy-3,5-dimethylphenyl)(5-methyl-1H-imidazol-4-yl)methyl]-2,6-dimethylphenol (Imbp) are discussed. Two polymorphs of Imbp, namely a non-porous (polymorph I) and porous (polymorph II) polymorph, are reported. The packing pattern of the acetone solvate is guided by strong O–H⋯N as well as weak η5-type N–H⋯π interactions. The packing pattern of the acetone solvate (III) is closely related to polymorph II, which has η4-type N–H⋯π interactions. Polymorph II reversibly absorbs