1,3,5-Trihydroxybenzene-2,2'-Bipyridyl (1/2): a Hydrogen-Bonded Structure Based on a Stem-and-Leaves Motif

In the 1:2 adduct formed between 1,3,5-trihydroxybenzene (phloroglucinol) and 2,2'-bipyridyl, 2C₁₀H₈N₂.C₆H₆O₃, the triol molecules and half of the bipyridyl molecules are linked into chains by means of O-H...N hydrogen bonds, forming a stem, while the other half of the bipyridyl molecules are pendent from this stem, via O-H...N hydrogen bonds.

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