electrochemical behavior of i-hydroxypyridine-2-thione and its vanadium complex is studied using polarographic techniques. polarograms of ligand and that of the complex is shown with diffusion characteristics of the waves. cyclic voltagram of thione is investigated which shows that a reversible oxidation reduction of one electron process is taking place. pka of the thione is found to be in clos...

The title compound C(7)H(5)N(3)S(2), occurs as the thione tautomer in the solid state; the dihedral angle between the pyridine and thia-diazole ring planes is 2.08 (6)°. In the crystal, mol-ecules are linked by N-H⋯N hydrogen bonds, generating C(8) chains propagating in [010].

The asymmetric unit of the title compound, C(9)H(4)S(7), contains two independent mol-ecules, in one of which the central five-membered ring is disordered over two orientations in a 0.924 (3):0.076 (3) ratio. The mol-ecular skeleton is almost planar: the average distance of the atoms from their mean plane is 0.128 (7) Å in the ordered mol-ecule, and 0.088 (5) and 0.123 (2) Å in the major and mi...

Reactions of copper(I) halides with imidazolidine-2-thione and 1-methyl-1,3-imidazoline-2-thione in dmso involved C-S rupture in aerobic conditions and yielded a sulfate bridged polymer, [Cu(II){eta(2)-N,N-(N(2)C(3)H(5))(2)S}(mu-O,OSO(2))(eta(1)-OH(2))](n) 1 and a sulfate chelated monomer, [Cu(II){eta(2)-N,N-(N(2)C(4)H(5))(2)S}(eta(2)-O,OSO(2))(eta(1)-OH(2))] 2 {N,N-(N(2)C(3)H(5))(2)S = 2,2'-th...

The title mol-ecule, C20H23NO2S, adopts a twisted conformation in which the two aromatic rings connected to the central piperidine ring are orientated trans to each other. An intra-molecular C-H⋯S contact occurs. In the crystal, C-H⋯π and C-H⋯O inter-actions act to stabilize the structure in three dimensions.

In the title compound, C10H10N2S, all non-H atoms are almost coplanar [maximum deviation = 0.103 (1) Å]. In the crystal, N-H⋯S inter-actions form R 2 (2)(8) rings linking pairs of mol-ecules related by inversion. The mol-ecular pairs are stacked along [100]. A herringbone arrangement of pairs in the [010] direction forms layers parallel to (010).

In the title compound, C(28)H(28)N(4)O(4)S, the dihedral angles between the central thio-phene ring and its pendant oxadiazole rings are 1.2 (3) and 9.8 (3)°. The dihedral angles between the oxadiazole and phenyl rings are 2.9 (3) and 1.8 (3)°. Some short intra-molecular C-H⋯O contacts occur.

The dihydro-pyrimidine ring of the title compound, C(13)H(15)ClN(2)S, adopts an envelope conformation with five almost coplanar atoms (r.m.s. deviation = 0.054 Å) and the C atom bearing the two methyl substituents deviating from this plane by 0.441 (2) Å. The best plane through the five almost coplanar atoms forms a dihedral angle of 89.56 (5)° with the benzene ring. The crystal packing is char...

The asymmetric unit of the title compound, C(12)H(9)NO(2)S(4), contains one half-mol-ecule with the N, two S amd four C atoms lying on a mirror plane. The mol-ecule exhibits a V-shaped conformation, with a dihedral angle of 87.00 (7)° between the benzene and dithiol-opyrrole rings. The methyl group was treated as rotationally disordered between two orientations in a 1:1 ratio. In the crystal, w...

In the title compound, C(12)H(14)ClNS(2), the thia-zole ring adopts an envelope conformation; the basal plane is nearly perpendicular to the benzene ring at a dihedral angle of 85.72 (5)°. Weak inter-molecular C-H⋯S hydrogen bonding is present in the crystal structure.