Acta Cryst. (2012). E68, o208  [ doi:10.1107/S1600536811053967 ]

3a,11b-Dihydroxy-3a,11b-dihydro-1H-imidazo[4,5-f][1,10]phenanthroline-2(3H)-thione

H. Wang, P. Mei, W.-Y. Chu, Z.-Z. Sun and Y.-J. Hou

Abstract: The title compound, C₁₃H₁₀N₄O₂S, was prepared through a cyclization reaction of 1,10-phenanthroline-5,6-dione and thiourea. The dihedral angle between the pyridine rings is 8.22 (2)°. In the crystal, molecules are connected by N-HO, O-HN, N-HS and O-HS hydrogen bonds, forming a three-dimensional network.

Online 21 December 2011

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