title: 7-Chloro-4-[(7-chloro-quinolin-4-yl)sulfan-yl]quinoline dihydrate.
abstract: In the title thio-ether dihydrate, C(18)H(10)Cl(2)N(2)S·2H(2)O, the S-bound quinolinyl residues are almost orthogonal, forming a dihedral angle of 72.36 (4)°. In the crystal, the four water mol-ecules are connected via an eight-membered {⋯OH}(4) synthon with each of the four pendent water H atoms hydrogen bonded to a pyridine N atom to stabilize a three-dimensional architecture.
authors.forename: James L
authors.initials: JL
authors.lastname: Wardell
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink