Hydrogen-bond networks in tris(4-hydroxyphenyl)methane and its 1:1 Molecular complex with 4,4′-bipyridine

Abstract

In tris(4-hydroxyphenyl)methane (or 4,4′,4″-methanetriyltriphenol), C19H16O 3, molecules are connected by O - H⋯O hydrogen bonds [O⋯O = 2.662 (2) and 2.648 (2) Å] into two-dimensional square networks that are twofold interpenetrated. In tris(4-hydroxyphenyl)methane-4,4′-bipyridine (1/1), C19H 16O3·C10H8N2, trisphenol molecules form rectangular networks via O - H⋯O [O⋯O = 2.694 (3) Å] and C - H⋯ O [C⋯O = 3.384 (3) Å] hydrogen bonds. Bipyridine molecules hydrogen bonded to phenol moieties [O⋯N = 2.622 (3) and 2.764 (3) Å] fill the voids to complete the structure.