catena-Poly[[aqua-sodium(I)]-μ-[2,2'-(disulfanedi-yl)bis-(pyridine N-oxide)]-μ-(pyridine-2-thiol-ato 1-oxide)]

There are two monomeric units in the asymmetric unit of the polymeric title compound, [Na(C(5)H(4)NOS)(C(10)H(8)N(2)O(2)S(2))(H(2)O)](n). The Na(I) ions are six coordinated by four O atoms, one S atom and one water mol-ecule, forming a slightly distorted octa-hedral geometry. An intra-molecular O-H⋯O hydrogen bond stabilizes the conformation of the mol-ecule. The crystal packing is consolidated by inter-molecular O-H⋯O, O-H⋯N and O-H⋯S hydrogen bonds, π-π inter-actions [with centroid-centroid distances of 3.587 (2) Å] together with weak C-H⋯π inter-actions. The mol-ecules are linked into polymeric chains along the b-axis direction.

2-(2,3,5,6-Tetra-methyl-benzyl-sulfan-yl)pyridine N-oxide

In the title compound, C(16)H(19)NOS, the durene ring and the oxopyridyl ring form a dihedral angle of 82.26 (7)°. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds, weak C-H⋯π inter-actions and π-π inter-actions [centroid-centroid distance of 3.4432 (19) Å], together with intra-molecular S⋯O [2.657 (2) Å] short contacts.

2-(Mesitylmethyl-sulfan-yl)pyridine N-oxide-18-crown-6 (2/1)

In the title compound, 2C(15)H(17)NOS·C(12)H(24)O(6), the asymmetric unit consists of one N-oxide derivative and one-half of the 18-crown-6 ether, which lies on an inversion centre. In the crown ether, the O-C-C-O torsion angles indicate a gauche conformation of the ethyl-eneoxy units, while the C-O-C-C torsion angles indicate planarity of these segments. In the N-oxide unit, the dihedral angle between the pyridine and benzene rings is 85.88 (12)°. The crystal packing is stabilized by weak C-H⋯O hydrogen bonds and C-H⋯π inter-actions.