O. Angelova et al., STRUCTURE OF 2-PYRIDYLIMINO)-4-METHYL-2,3-DIHYDRO-1,3-THIAZOLE, C16H15N3OS, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 2167-2169
The hydroxyl H atom takes part in a bifurcated hydrogen bond. The stro
ng intramolecular O-H...N(imino) bond is complemented by the weak O-H.
..O bond [O...O 3.023 (3), H...O 2.58 (3) angstrom, O-H...O 113 (2)-de
grees], which is responsible for the coupling of the molecules in cent
rosymmetric dimers. The bifurcation angle N...H...O is 100 (1)-degrees
. The molecular dimers are held together only by van der Waals forces.