1,3-Di-2-pyridylthiourea monohydrate

Abstract

The title compound, C11H10N4S·H2O, displays an intramol­eculear Namido⋯Npyridyl hydrogen bond [2.652 (2) A] that locks the thio­urea unit and one pyridyl ring into coplanarity [dihedral angle 2.7 (1)°]. The second pyridyl ring is also coplanar with the thio­urea unit [dihedral angle 2.9 (1)°]. Its attached N atom interacts with the lattice water mol­ecule to form a helical hydrogen-bonded chain that runs parallel to the b axis of the orthorhombic unit cell; adjacent chains are linked into a layer-like architecture by another hydrogen bond between the water mol­ecule and the double-bonded S atom.