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Crystal structure of 3-(prop-2-en-1-yl)-1-{[(1E)-1,2,3,4-tetra-hydro-naphthalen-1-yl-idene]amino}-thio-urea.

ABSTRACT: In the title compound, C14H17N3S, the dihedral angle between the planes of the benzene ring and the thio-semicarbazone group (r.m.s. deviation = 0.031 Å) is 8.45 (4)°. A short intra-molcular N-H⋯N contact is seen. In the crystal, weak N-H⋯S hydrogen bonds connect the mol-ecules into C(4) chains propagating in the [010] direction, with adjacent mol-ecules in the chain related by 21 screw-axis symmetry.

SUBMITTER: Mague JT

PROVIDER: S-EPMC4719931 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure of 3-benzyl-1-[(1,2,3,4-tetra-hydro-naphthalen-1-yl-idene)amino]-thio-urea.

Project description:In the title compound, C18H19N3S, the dihedral angle between the planes of the benzene rings is 58.63 (8)°. The six-membered ring bonded to the thio-semicarbazide group (r.m.s. deviation = 0.038 Å) adopts a sofa conformation, with one of the methyl-ene-group C atoms as the flap. A short intra-molecular N-H⋯N contact is observed. In the crystal, mol-ecules are linked by weak N-H⋯S inter-actions to generate C(4) chains propagating in the [010] direction, with adjacent mol-ecules related by glide symmetry.

| S-EPMC4719930 | biostudies-literature

(2E)-2-(Thio-phen-2-yl-methyl-idene)-1,2,3,4-tetra-hydro-naphthalen-1-one.

Project description:In the title compound, C(15)H(12)OS, the cyclo-hexene ring has a twisted boat conformation with the C atom between the ketone and methyl-ene atom and this methyl-ene C atom lying 0.280?(3) and 0.760?(3)?Å, respectively, from the plane through the remaining four atoms (r.m.s. deviation = 0.004?Å). The dihedral angle between the benzene and thio-phene rings [21.64?(9)°] indicates an overall twist in the mol-ecule. The thio-phene S and ketone O atoms are anti, an orientation that allows the close approach of these atoms [3.3116?(17)?Å] in the crystal structure and which leads to the formation of helical supra-molecular chains along the c axis.

| S-EPMC3394074 | biostudies-literature

1-[(Cyclo-hexyl-idene)amino]-3-(prop-2-en-1-yl)thio-urea.

Project description:The asymmetric unit of the title compound, C10H17N3S, consists of three symmetry-independent mol-ecules with distinctly different conformations, as indicated for example by the C-N-C-C torsion angles of -155.9?(3), 89.9?(3) and 81.1?(4)° along the bond between thio-urea and allyl units. In the crystal, mol-ecules are connected via N-H?N and N-H?S hydrogen bonds into chains extending along [110] that are further associated through C-H?N inter-actions into layers parallel to (001). The allyl group in one of the independent mol-ecules is disordered over two sets of sites with an occupancy ratio of 0.853?(6):0.147?(6).

| S-EPMC4120545 | biostudies-literature

3-(Prop-2-en-1-yl)-2-sulfanyl-idene-1,2,3,4-tetra-hydro-quinazolin-4-one.

Project description:The tetra-hydro-quinazoline fused-ring system of the title compound, C(11)H(10)N(2)OS, is approximately planar (r.m.s. deviation = 0.019?Å). In the crystal, adjacent mol-ecules are linked by N-H?O hydrogen bonds, forming a chain running along the b axis.

| S-EPMC3379384 | biostudies-literature

2-(1,2,3,4-Tetra-hydro-naphthalen-1-yl-idene)hydrazinecarbothio-amide.

Project description:The mol-ecular structure of the title compound, C(11)H(13)N(3)S, is not planar: the maximum deviation from the mean plane of the non-H atoms is 0.521?(2)?Å for an aliphatic C atom, which corresponds to an envelope conformation for the non-aromatic ring. The hydrazinecarbothio-amide substituent and the benzene ring have maximum deviations from the mean planes through the non-H atoms of 0.0288?(16) and 0.0124?(27)?Å, respectively, and the dihedral angle between the two planes is 8.84?(13)°. In the crystal, mol-ecules are linked into chains along [1[Formula: see text]0] by pairs of N-H?S hydrogen bonds between mol-ecules related by centres of symmetry.

| S-EPMC3415020 | biostudies-literature

Crystal structure of <i>N</i>-ethyl-2-(1,2,3,4-tetra-hydro-naphthalen-1-yl-idene)hydrazinecarbo-thio-amide.

Project description:There are two crystallographically independent mol-ecules in the asymmetric unit of the title compound, C13H17N3S, one of them being disordered over the methyl group [site-occupancy ratio = 0.705?(5):0.295?(5)]. The maximum r.m.s. deviations from the mean plane of the non-H atoms for the tetra-lone fragments amount to 0.4572?(17) and 0.4558?(15)?Å. The N-N-C-N fragments are not planar and torsion angles are -9.4?(2) and 8.3?(2)°. In the crystal, the mol-ecules are linked by weak N-H?S inter-actions into chains along [100] with graph-set motif C(4) and connected by weak N-H?S and C-H?S inter-actions, forming R21(10) rings. The Hirshfeld surface analysis indicates that the most important contributions for the crystal packing are the H?H (64.20%), H?S (12.60%) and H?C (12.00%) inter-actions. The crystal packing resembles a herringbone arrangement when viewed along [001].

| S-EPMC5290584 | biostudies-literature

Methyl 2-((2Z,5Z)-4-oxo-3-phenyl-2-{2-[(1E)-1,2,3,4-tetra-hydro-naphthalen-1-yl-idene]hydrazin-1-yl-idene}-1,3-thia-zolidin-5-yl-idene)acetate.

Project description:In the title compound, C22H19N3O3S, the six-membered ring of the 1,2,3,4-tetra-hydro-naphthalene ring system adopts an envelope conformation with the central CH2 C atom as the flap. The mol-ecular conformation is stabilized by an S?O contact, forming a pseudo-five-membered ring. In the crystal, mol-ecules are linked via C-H?O hydrogen bonds into chains propagating along [102].

| S-EPMC3998598 | biostudies-literature

1-(2,4-Dinitro-phen-yl)-2-(1,2,3,4-tetra-hydro-naphthalen-1-yl-idene)hydrazine.

Project description:In the title compound, C(14)H(14)N(4)O(4), the dihedral angle between the benzene rings is 10.42?(8)°. The nitro groups make dihedral angles of 5.3?(2) and 6.47?(15)° with their parent ring and are oriented at 11.2?(3)° with respect to each other. An intra-molecular N-H?O hydrogen bond completes an S(6) ring motif. In the crystal, mol-ecules are linked by C-H?O inter-actions, thus forming (010) chains in which R(2) (2)(13) ring motifs are present. There also exist aromatic ?-? stacking inter-actions [centroid-centroid separation = 3.7046?(9)?Å].

| S-EPMC3007257 | biostudies-literature

4-Nitro-N'-[(1E,2E)-3-phenyl-prop-2-en-1-yl-idene]benzohydrazide.

Project description:In the title mol-ecule, C(16)H(13)N(3)O(3), the benzene and phenyl rings are linked through a propenyl-idene hydrazide fragment, C-C(=O)-N(H)-N=C(H)-C(H)=C(H)-, which is fully extended with torsion angles in the range 175.4?(2)-179.9?(2)°. The dihedral angle between the the benzene and phenyl rings is 58.28?(7)°. In the crystal structure, inter-molecular N-H?O hydrogen bonds link the mol-ecules into chains along the b axis and additional stabilization is provided by weak inter-molecular C-H?O hydrogen bonds.

| S-EPMC2979035 | biostudies-literature

N-Phenyl-2-(1,2,3,4-tetra-hydro-naph-thalen-1-yl-idene)hydrazinecarbo-thio-amide.

Project description:The conformation of the title mol-ecule, C17H17N3S, is stabilized by an intra-molecular N-H?N hydrogen bond involving the azometinic group. The dihedral angle between the two aromatic rings is 36.49?(06)°. The non-aromatic ring of the tetra-lone substituent adopts a sofa conformation. In the crystal, mol-ecules are linked by pairs of N-H?S hydrogen bonds related via centres of symmetry, forming dimers.

| S-EPMC3998352 | biostudies-literature

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