El sector exterior y la incorporación de España a la CEE

Abstract

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-hydroxy-benzyl alcohol) with another compound containing two hydrogen-bond acceptors (phenanthroline). Unexpectedly, the two mol-ecules do not form dimers with two O-H⋯N hydrogen bonds connecting the two mol-ecules. However, one of the hydr-oxy groups forms a bifurcated hydrogen bond to both phenanthroline N atoms, whereas the other hydr-oxy group forms an O-H⋯O hydrogen bond to a symmetry-equivalent 2-hydroxy-benzyl alcohol mol-ecule. In addition, the crystal packing is stabilized by π-π inter-actions between the two phenanthroline ring systems, with a centroid-centroid distance of 3.570 Å.