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2,2'-[(1,3,4-Thia-diazole-2,5-di-yl)bis-(sulfanedi-yl)]diaceto-nitrile.

ABSTRACT: In the title compound, C6H4N4S3, the 1,3,4-thia-diazole ring is essentially planar, with an r.m.s. deviation of 0.001 Å. The two N-C-S-C torsion angles in the mol-ecule are -23.41 (15) and 0.62 (14)°. One aceto-nitrile group is above the plane of the 1,3,4-thia-diazole ring and the other is below it, indicating syn and anti orientations. In the crystal, C-H⋯N hydrogen bonds link the molecules into ribbons along [010].

SUBMITTER: Mague JT

PROVIDER: S-EPMC3885093 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N,N-Bis(quinolin-8-yl)-2,2'-[(1,3,4-thia-diazole-2,5-di-yl)bis-(sulfanedi-yl)]diacetamide monohydrate.

Project description:In the title compound, C(24)H(18)N(6)O(2)S(3)·H(2)O, the thia-diazole ring makes dihedral angles of 78.00 (13) and 77.27 (13)° with the quinoline ring systems. In the crystal, mol-ecules are linked into a two-dimensional network by O-H⋯O and C-H⋯O hydrogen bonds.

| S-EPMC3238945 | biostudies-literature

4,4'-[(1,3,4-Thia-diazole-2,5-di-yl)bis-(thio-methyl-ene)]dibenzonitrile.

Project description:The title mol-ecule, C(18)H(12)N(4)S(3), consists of three essentially planar fragments, viz. two methyl-substituted benzonitrile rings and a substituted thia-diazole ring. The dihedral angles between the substituted benzonitrile rings and the central thia-diazole ring are 28.29 (10) and 78.83 (6)°, and the dihedral angle between the two benzonitrile rings is 72.89 (7)°.

| S-EPMC2962212 | biostudies-literature

Poly[[{?(4)-2,2'-[butane-1,4-diylbis(sulfanedi-yl)]bis-(1,3,4-thia-diazole)}silver(I)] perchlorate sesquihydrate].

Project description:In the polymeric title compound, {[Ag(C(8)H(10)N(4)S(4))]ClO(4)·1.5H(2)O}(n), the Ag(I) atom has a slightly distorted trigonal-planar coordination geometry provided by three N-atom donors from the thia-diazole rings of three symmetry-related 2,2'-[butane-1,4-diylbis(sulfanedi-yl)]bis-(1,3,4-thia-diazole) ligands. Centrosymmetrically related Ag(I) atoms are bridged by the N-N fragments of rings, forming six-membered dinuclear metallacycles, which are further linked by the alkyl spacers of the thia-diazole ligands into a layer network extending parallel to (0-21). The crystal structure is stabilized by inter-molecular O-H?O hydrogen bonds. The O atoms of the perchlorate anion and one water mol-ecule are disordered over two sets of sites with refined occupancy ratios of 0.640?(6):0.360?(6) and 0.663?(11):0.337?(11), respectively. The second water molecule shows half-occupancy.

| S-EPMC3379184 | biostudies-literature

2,5-Bis[(3-chloro-benz-yl)sulfan-yl]-1,3,4-thia-diazole.

Project description:The complete mol-ecule of the title compound, C(16)H(12)Cl(2)N(2)S(3), is generated by crystallographic twofold symmetry, with the S atom of the thiadiazole ring lying on the rotation axis. The dihedral angle between the mean planes of the 1,3,4-thia-diazole and benzene rings is 87.19 (7)°. In the crystal, mol-ecules are linked by C-H⋯N inter-actions and short S⋯S contacts [3.3389 (9) Å] occur.

| S-EPMC3379226 | biostudies-literature

5,5'-Diethyl-2,2'-(triazene-1,3-di-yl)di-1,3,4-thia-diazole.

Project description:In the mol-ecule of the title compound, C(8)H(11)N(7)S(2), the conformation about the N=N bond is trans and the thia-diazole rings are oriented at a dihedral angle of 2.92 (3)°. In the crystal structure, inter-molecular N-H⋯S hydrogen bonds link the mol-ecules into chains. There are π-π contacts between the thia-diazole rings [centroid-to-centroid distances = 3.699 (3) and 3.720 (2) Å].

| S-EPMC2959579 | biostudies-literature

trans-Diaqua-bis-[2,5-bis-(pyridin-2-yl)-1,3,4-thia-diazole]nickel(II) bis-(tetra-fluoridoborate).

Project description:The bidentate 1,3,4-thia-diazole ligand, namely, 2,5-bis-(2-pyrid-yl)-1,3,4-thia-diazole (denoted L), untested as a polydentate ligand, has been found to form the monomeric title complex, [Ni(C(12)H(8)N(4)S)(2)(H(2)O)(2)](BF(4))(2). The complex shows an octa-hedral environment of the nickel cation in which the Ni(2+) ion is located on a center of symmetry, linked to two ligands and two water molecules. In this 1:2 complex (one metal for two organic ligands) each thia-diazole ligand uses one pyridyl and one thia-diazole N atom for chelate binding. In the second pyridyl substituent, the N atom is oriented towards the same direction as the S atom of the 1,3,4-thiadiazole ring. The mean plane of the thia-diazole and pyridyl rings linked to the nickel cation forms a dihedral angle with the other pyridine ring of 18.63?(8)°. The tetra-fluorido-borate ions can be regarded as free anions in the crystal lattice. Nevertheless, they are involved in an infinite two-dimensional network parallel to ([Formula: see text]01) through O-H?F hydrogen bonds.

| S-EPMC3212138 | biostudies-literature

trans-Diaqua-bis-[2,5-bis-(pyridin-2-yl)-1,3,4-thia-diazole]cobalt(II) bis-(tetra-fluoridoborate).

Project description:The bidentate 1,3,4-thia-diazole ligand substituted by two 2-pyridyl rings (denoted L) has been found to produce the new monomeric title complex, [Co(C(12)H(8)N(4)S)(2)(H(2)O)(2)](BF(4))(2). The thia-diazole and pyridyl rings surrounding the Co atom are almost coplanar [dihedral angle = 4.35?(7)°]. The mean plane defined by these heterocyclic moieties makes a dihedral angle of 18.72?(6)° with the non-coordinated pyridyl ring. The Co(2+) cation, located at a crystallographic center of symmetry, is bonded to two ligands and two water mol-ecules in a trans configuration in an octa-hedral environment. The tetra-fluorido--borate ions can be regarded as free anions in the crystal lattice. Nevertheless, they are involved in an infinite two-dimensional network along the [010] and [101] directions of O-H?F hydrogen bonds.

| S-EPMC3151744 | biostudies-literature

Diaqua-bis(2,5-di-4-pyridyl-1,3,4-thia-diazole-κN)bis-(thio-cyanato-κN)copper(II) dihydrate.

Project description:In the title compound, [Cu(NCS)(2)(C(12)H(8)N(4)S)(2)(H(2)O)(2)]·2H(2)O, the Cu atom is located on an inversion center and displays an octa-hedral geometry. Two N atoms of two different 2,5-di-4-pyridyl-1,3,4-thia-diazole ligands and two N atoms from two separate thio-cyanate mol-ecules form the equatorial plane, while two coordinated water mol-ecules are in axial positions. The crystal structure is consolidated by extensive hydrogen bonding, forming a two-dimensional network.

| S-EPMC2961085 | biostudies-literature

catena-Poly[[[bis-[2,2'-(propane-1,3-diyl-dithio)bis-(1,3,4-thia-diazole)-?N]copper(II)]-bis-[?-2,2'-(propane-1,3-diyldithio)bis-(1,3,4-thia-diazole)-?N:N]] bis-(perchlorate)].

Project description:In the title compound, {[Cu(C(7)H(8)N(4)S(4))(4)](ClO(4))(2)}(n), the Cu(II) atom, occupying a crystallographic inversion centre, is six-coordinated by six N atoms of three symmetry-related 2,2'-(propane-1,3-diyldithio)bis-(1,3,4-thia-diazole) (L) ligands in a slightly distorted octa-hedral geometry. The ligand L adopts two kinds of coordination modes in the crystal structure; one is a monodentate coordination mode and serves to complete the octa-hedral coordination of the Cu atom and the other is an N:N'-bidentate bridging mode in a trans configuration, bridging Cu atoms via translation symmetry along the b axis into a chain structure. The perchlorate ions serve as acceptors for inter-molecular C-H?O hydrogen bonds, which link the chains into a three-dimensional network.

| S-EPMC2968698 | biostudies-literature

Diaqua-(2,5-di-4-pyridyl-1,3,4-thia-diazole-κN)bis-(thio-cyanato-κN)nickel(II) dihydrate.

Project description:In the title mononuclear complex, [Ni(NCS)(2)(C(12)H(8)N(4)S)(2)(H(2)O)(2)]·2H(2)O, the Ni(II) atom is located on an inversion center and is octa-hedrally coordinated by four N atoms from two 2,5-di-4-pyridyl-1,3,4-thia-diazole (bpt) ligands and two thio-cyanate mol-ecules forming the equatorial plane; the axial positions are occupied by two O atoms of coordinated water mol-ecules. O-H⋯O, O-H⋯N and O-H⋯S hydrogen bonds, involving the uncoordinated water molecules, result in the formation of a sheet structure developing parallel to (021).

| S-EPMC2959476 | biostudies-literature

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