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Crystal structure of (E)-2-[1-(benzo[d][1,3]dioxol-5-yl)ethyl-idene]-N-methyl-hydrazine-1-carbo-thio-amide.

ABSTRACT: In the title compound, C11H13N3O2S, there is a short intra-molecular N-H⋯N contact. The benzo[d][1,3]dioxole ring system is approximately planar (r.m.s. deviation = 0.025 Å) and makes a dihedral angle of 56.83 (6)° with the mean plane of the methyl-thio-semicarbazone fragment [-N-N-C(=S)-N-C; maximum deviation = 0.1111 (14) Å for the imino N atom]. In the crystal, mol-ecules are linked via pairs of N-H⋯S hydrogen bonds, forming inversion dimers. The dimers are connected by N-H⋯S hydrogen bonds into layers parallel to (100). The H atoms of both methyl groups are disordered over two sets of sites and were refined with occupancy ratios of 0.5:0.5 and 0.75:0.25.

SUBMITTER: de Oliveira AB

PROVIDER: S-EPMC4331916 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-Cyclo-heptyl-idene-N-phenyl-hydrazine-carbo-thio-amide.

Project description:In the title compound, C14H19N3S, the seven-membered cyclo-heptane ring adopts a chair conformation. An intra-molecular N-H⋯N hydrogen bond [graph-set motif S(5)] is present in the N-N-C-N chain between the ring systems. An intra-molecular C-H⋯S contact also occurs. In the crystal, pairs of mol-ecules form centrosymmetric dimers through N-H⋯S hydrogen bonds [graph-set R 2 (2)(8)]. These dimers are connected by C-H⋯S inter-actions with an R 2 (2)(14) motif.

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Crystal structure of (2E)-N-methyl-2-[(4-oxo-4H-chromen-3-yl)methyl-idene]hydrazine-carbo-thio-amide.

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| S-EPMC4257262 | biostudies-literature

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Crystal structure of (<i>E</i>)-<i>N</i>-cyclo-hexyl-2-(2-hy-droxy-3-methyl-benzyl-idene)hydrazine-1-carbo-thio-amide.

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Crystal structure and Hirshfeld surface analysis of (E)-2-(5-bromo-2-hy-droxy-benzyl-idene)hydrazine-carbo-thio-amide di-methyl sulfoxide monosolvate.

Project description:The mol-ecule of the title Schiff base, C8H8BrN3OS·C2H6OS, which crystallizes as a di-methyl sulfoxide (DMSO) monosolvate, displays an E configuration with respect to the C=N bond, with a dihedral angle of 14.54 (11)° between the benzene ring and the mean plane of the N-N-C(N)=S unit. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming chains propagating along the b-axis direction. Within the chains there are R23(11) ring motifs, which are reinforced by C-H⋯ODMSO hydrogen bonds enclosing secondary R12(6) and R23(9) loops. The chains are linked by O-Hhydrox-yl⋯S hydrogen bonds, forming layers parallel to (011). Inversion-related layers are linked by short Br⋯Br inter-actions [3.5585 (5) Å], forming slabs parallel to (011). The inter-molecular inter-actions have been investigated using Hirshfeld surface studies and two-dimensional fingerprint plots. The crystal structure of the unsolvated form of the title compound has been reported previously [Kargar et al. (2010). Acta Cryst. E66, o2999], and its solid-state structure is compared with that of the title solvated form.

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Crystal structure of (E)-2-[(2S,5R)-2-isopropyl-5-methyl-cyclo-hexyl-idene]hydrazine-1-carbo-thio-amide.

Project description:The title compound, C11H21N3S, consists of a menthone moiety attached to an extended thio-semicarbazone group with the N-N-C-N torsion angle being 11.92?(16)°. The cyclo-hexane ring has a chair conformation and the conformation about the C=N bond is E. In the crystal, mol-ecules are linked via pairs of N-H?S hydrogen bonds, forming chains along the a axis. The absolute structure could be assigned with reference to the starting material, i.e. enanti-opure (-)-menthone [Flack parameter = 0.05?(5)].

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N-Ethyl-2-[1-(2-hy-droxy-4-methyl-phen-yl)ethyl-idene]hydrazinecarbo-thio-amide.

Project description:The title compound, C12H17N3OS, crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. The dihedral angle between the mean planes of the benzene ring and the hydrazinecarbo-thio-amide group are 6.9?(4) and 37.2?(5)° in mol-ecules A and B, respectively. An intra-molecular O-H?N hydrogen bond is observed in each mol-ecule. This serves to maintain an approximately planar conformation for mol-ecule A, but leaves a significant twist between these two groups in mol-ecule B. In the crystal, a weak N-H?S inter-action is observed, forming inversion dimers among the B mol-ecules and resulting in an R 2 (2)(8) motif. These dimers are further inter-connected by weak N-H?O and C-H?O inter-molecular inter-actions, forming chains along [011].

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Crystal structure of (E)-2-[4-(4-hy-droxy-phen-yl)butan-2-yl-idene]hydrazine-1-carbo-thio-amide.

Project description:The title compound, C11H15N3OS, is a thio-semicarbazone derivative of the raspberry ketone rheosmin [systematic name: 4-(4-hy-droxy-phen-yl)butane-2-one]. The mol-ecule deviates from planarity, with the bridging C-C-C=N torsion angle equal to -101.3 (2)°. The maximum deviation from the mean plane of the non-H atoms of the thio-semicarbazone fragment [C=N-N-C(= S)-N] is 0.085 (5) Å for the Schiff base N atom, and the dihedral angle between this mean plane and the aromatic ring is 50.31 (8)°. In the crystal, mol-ecules are linked by N-H⋯O, N-H⋯S and O-H⋯S hydrogen bonds, forming a three-dimensional structure, with the mol-ecules stacked along [011].

| S-EPMC4331873 | biostudies-literature

2-Cyclo-hexyl-idene-N-methyl-hydrazine-carbothio-amide.

Project description:The title compound C(8)H(15)N(3)S has two mol-ecules in the asymmetric unit in which cis-trans isomerism is exhibited around the N(NH)C=S bonds. The cyclo-hexyl rings in both mol-ecules adopt a chair conformation. In the crystal, N-H?S hydrogen bonding produces dimers, which are inter-connected through further N-H?S hydrogen bonds, forming chains along the b-axis direction.

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Crystal structure of (E)-2-[3-(tert-but-yl)-2-hy-droxy-benzyl-idene]-N-cyclo-hexyl-hydrazine-1-carbo-thio-amide.

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