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In the title compound, C12H14Cl2N2O2S, the mol­ecule adopts a cis conformation with respect to the di­chloro­benzoyl group against the thiono group about the C—N bond. However, the di­chloro­benzene group and the thio­urea moiety are twisted by 75.41 (8)°. An intra­molecular N—H...O hydrogen bond occurs between the amido H atom and hydroxyl O atom. In the crystal, O—H...S and O—H...O hydrogen bonds link the molecules, forming chains along the b-axis direction.

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The title compound, C10H9Cl2N3O3S, adopts a trans–cis conformation with respect to the position of chloropropionyl and chloronitrobenzene groups respectively, against the thiono about their C—N bonds. The conformation is stabilized by an intra­molecular N—H...O hydrogen bond. In the crystal, there is a short Cl...Cl contact with a distance of 3.386 (13) Å.

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The complete title molecule, C23H19N3O2, is generated by a twofold axis passing through the central ring. The two oxymethyl­benzo­nitrile arms are attached at the meta positions of the central pyridine ring. The dihedral angle between the pyridine ring and benzene ring of both arms is 84.55 (6)° while the benzene rings make a dihedral angle of 46.07 (7)°. In the crystal, weak C—H...π inter­actions link the molecules sheets parallel to the ac plane.

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In the title compound, C12H15FN2O2S, the mol­ecule adopts a cis configuration of the fluoro­benzoyl group with respect to the thiono group about their C—N bond. The dihedral angle between the fluoro­benzoyl group and the thio­urea N2CS fragment is 69.60 (11)°. An intra­molecular N—H...O hydrogen bond occurs. In the crystal, mol­ecules form chains along the b-axis direction via O—H...S and C—H...O hydrogen bonds.

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The title compound, C13H18N2O2S, adopts a cis conformation between the methyl­benzoyl and thiono groups across their thio­urea C—N bond. However, the methyl­benzoyl group and N2CS thio­urea moiety are twisted by 15.03 (3)°. In the molecule there is an N—H...O hydrogen bond. In the crystal, mol­ecules are linked by O—H...O inter­actions, generating chains extending along the c-axis direction.

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The two independent mol­ecules in the asymmetric unit of the title compound, C11H12Cl2N2OS, exhibit different conformations, with the benzene ring and the N2CS thio­urea group forming dihedral angles of 87.40 (18) and 69.42 (15)°. An intra­molecular N—H...O hydrogen bond is present in each mol­ecule. Two further N—H...O hydrogen bonds link the independent mol­ecules into a dimer. In the crystal, the dimers are linked by N—H...S and C—H...S hydrogen bonds, forming chains parallel to the c axis.

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The title compound, C10H10BrClN2OS, adopts a transcis conformation with respect to the position of the 3-chloro­propanoyl and 4-bromo­phenyl groups, respectively, against the thiono C=S bond across their C—N bonds. The benzene ring makes a dihedral angle of 9.55 (16)° with the N2CS thio­urea moiety. Intra­molecular N—H...O and C—H...S hydrogen bonds occur. In the crystal, mol­ecules are linked into chains along the c-axis direction by N—H...S, C—H...S and C—H...O hydrogen bonds.

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In the title compound, C10H11FN3O3S, the 2-fluoro­benzoyl and proponic acid groups maintain a trans–cis conformation with respect to the thiono C=S bond across their C—N bonds. The propionic acid group adopts an anti conformation about the C—C bond, with an N—C—C—C torsion angle of 173.8 (2)°. The amino groups are involved in the formation of intra­molecular N—H...O and N—H...F hydrogen bonds. In the crystal, pairs of O—H...O hydrogen bonds link mol­ecules into inversion dimers.

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The title compound, C12H8ClFN2OS, is a hydrazide derivative adopting an E conformation with an azomethine N=C double bond length of 1.272 (2) Å. The mol­ecular skeleton is approximately planar; the terminal five- and six-membered rings form a dihedral angle of 5.47 (9)°. In the crystal, mol­ecules are linked by N—H...O and C—H...O hydrogen bonds into zigzag chains propagating in [100].

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In the title compound, C15H11F2N3O2S, the dihedral angle between the fluoro­benzene rings is 88.43 (10)° and that between the central semithiocarbazide grouping is 47.00 (11)°. The dihedral angle between the amide group and attached fluoro­benzene ring is 50.52 (11)°; the equivalent angle between the carbonyl­thio­amide group and its attached ring is 12.98 (10)°. The major twists in the mol­ecule occur about the C—N—N—C bonds [torsion angle = −138.7 (2)°] and the Car—Car—C—N (ar = aromatic) bonds [−132.0 (2)°]. An intra­molecular N—H...O hydrogen bond occurs, which generates an S(6) ring. In the crystal, the mol­ecules are linked by N—H...O and N—H...S hydrogen bonds, generating (001) sheets. Weak C—H...O and C—H...F inter­actions are also observed.

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In the title benzoyl­hydrazide derivative, C15H14N2O2, the dihedral angle between the planes of the two phenyl rings is 12.56 (9)°. The azomethine double bond adopts an E configuration stabilized by an N—H...O hydrogen bond. In the crystal, the components are linked by C—H...O inter­actions to form chains along the b axis.
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