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In the title compound, [ZnCl2(C7H6N2S)2]·0.5CH3CH2OH, the ZnII atom is coordinated by two N atoms of two 2-amino­benzothia­zole ligands and two Cl atoms within a distorted tetra­hedral geometry. The dihedral angle between the N/Zn/N and Cl/Zn/Cl planes is 86.22 (7)°. The benzothia­zole mol­ecules are almost perpendicular to each other, forming a dihedral angle of 80.20 (8)°. The mol­ecular structure is stabilized by intra­molecular N—H...Cl hydrogen bonds. In the crystal, inter­molecular N—H...Cl hydrogen bonds link the mol­ecules into a three-dimensional network. The SQUEEZE procedure in PLATON [Spek (2009). Acta Cryst. D65, 148–155] was used to model a disordered ethanol solvent mol­ecule; the calculated unit-cell data allow for the presence of half of this mol­ecule in the asymmetric unit.

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In the title compound, C4H5N3OS2·2C2H6OS, the five-membered heterocyclic ring and the N—(C=O)—C plane of the acetamide group are essentially co-planar, with a dihedral angle of 1.25 (3)°. Inter­molecular N—H...O hydrogen bonds between the acetamide compound and the dimethyl sulfoxide mol­ecules stabilize the crystal structure. The two dimethyl sulfoxide mol­ecules are each disordered over two positions with occupancy ratios of 0.605 (2):0.395 (2) and 0.8629 (18):0.1371 (18).

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In the title compound, C11H13NO3S, the dihedral angle between the benzyl and carbamate groups is 12.67 (10)°. The S atom and the carbonyl O atom are positioned anti to each other. In the crystal, pairs of N—H...S hydrogen bonds link mol­ecules into inversion dimers.

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In the title compound [systematic name: N-(carbamoyl­carb­a­mo­thio­yl)benzamide], C9H9N3O2S, the benzoyl and terminal urea fragments adopt cisoid and transoid conformations, respectively, with respect to the S atom. The benzoyl and thio­biuret groups are almost coplanar, making a dihedral angle of 8.48 (5)°. The mol­ecular structure is stabilized by an intra­molecular N—H...O hydrogen bond. In the crystal, N—H...O and N—H...S hydrogen bonds link the mol­ecules into a sheet parallel to the bc plane.

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In the title compound, C4H6N2OS2, the dihedral angle between the five-membered heterocyclic ring and the plane of the eth­oxy group is 4.9 (2)°. The 1,3,4-thiadiazole-2-thione unit is planar, with an r.m.s. deviation of 0.011 Å from the corresponding squares plane defined by the seven constituent atoms. In the crystal, pairs of N—H...S hydrogen bonds link the mol­ecules into inversion dimers.

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In the title compound, [Zn(C20H14NO)2]·2CH3OH, the ZnII atom lies on a crystallographic twofold rotation axis and is coordinated by two O atoms and two N atoms from two bidentate 2-{[(9H-fluoren-2-yl)methyl­idene]amino}­phenolate ligands within a distorted tetra­hedral geometry. The dihedral angle between the two chelate rings is 82.92 (5)°. In the coordinated ligand, the phenol ring is twisted at 30.22 (9)° from the mean plane of the fluorene ring. In the crystal, O—H...O hydrogen bonds link the complex mol­ecules to the methanol solvent mol­ecules.

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In the title compound, C14H14N2O2S, the dihedral angles between the thio­urea group and the methoxyphenyl and hydroxyphenyl rings are 61.91 (4) and 76.90 (4)°, respectively. The benzene rings are twisted with respect to each other, making a dihedral angle of 71.03 (4)°. The H atoms of the thio­urea NH groups are positioned anti to each other. In the crystal, inter­molecular N—H...S, N—H...O and O—H...S hydrogen bonds link the mol­ecules into a three-dimensional network.

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In the title compound, C11H11N3O2S, the dihedral angle between the thia­diazole and phenyl rings is 28.08 (7)°. In the crystal, mol­ecules are linked into an inversion dimer by a pair of inter­molecular N—H...N hydrogen bonds with an R22(8) graph-set motif.

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The asymmetric unit of the title compound, C12H10N4O2S4·2C2H6OS, contains one half of the p-xylene mol­ecule and one dimethyl sulfoxide mol­ecule. The p-xylene mol­ecule is located about a crystallographic inversion centre. In the mol­ecule, the thia­diazole and benzene rings are almost perpendicular to one another, with a dihedral angle of 88.95 (6)°. In the crystal, an N—H...O hydrogen bond is observed between the two components. The dimethyl sulfoxide mol­ecule is disordered over two orientations with an occupancy ratio of 0.879 (1):0.121 (1).

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In the title compound, C18H21NO4, the dihedral angles between the acetamide group and the meth­oxy- and hy­droxy-substitured benzene rings are 80.81 (5) and 8.19 (12)°, respectively. The benzene rings are twisted with respect to each other, making a dihedral angle of 72.89 (5)°. In the crystal, N—H...O and O—H...O hydrogen bonds link the mol­ecules into a three-dimensional network.

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The asymmetric unit of the title compound, C2H3N3OS, contains three independent mol­ecules which are essentially planar, with r.m.s. deviations of 0.011 (2)–0.027 (2) Å from the mean plane defined by the seven non-H atoms. In the crystal, N—H...N and N—H...O hydrogen bonds link the mol­ecules into a sheet parallel to the (111) plane.

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In the title compound, C12H12N6S4, the two terminal thia­diazole rings are twisted with respect to the central benzene ring, making dihedral angles of 54.28 (4) and 76.56 (3)°. The dihedral angle between the two thia­diazole rings is 27.77 (4)°. Inter­molecular N—H...N hydrogen bonds stabilize the crystal packing, linking the mol­ecules into a tape along the b axis.

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In the cation of the title salt, C28H27O3S+·CF3O3S-, the dihedral angle between the naphthalene ring system and the -C(=O)-O- plane is 80.39 (9)°. The three methyl groups of the tert-butyl group are each disordered over two orientations with an occupancy ratio of 0.712 (18):0.288 (18).
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