2-Hydroxy­benzyl alcohol–phenanthroline (1/1)

Crystals of the title compound, C(12)H(8)N(2)·C(7)H(8)O(2), were obtained during cocrystallization experiments of a compound with two hydrogen-bond donors (2-hydroxy­benzyl alcohol) with another compound containing two hydrogen-bond acceptors (phenanthroline). Unexpectedly, the two mol­ecules do not form dimers with two O—H⋯N hydrogen bonds connecting the two mol­ecules. However, one of the hydr­oxy groups forms a bifurcated hydrogen bond to both phenanthroline N atoms, whereas the other hydr­oxy group forms an O—H⋯O hydrogen bond to a symmetry-equivalent 2-hydroxy­benzyl alcohol mol­ecule. In addition, the crystal packing is stabilized by π–π inter­actions between the two phenanthroline ring systems, with a centroid–centroid distance of 3.570 Å.