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2-(2-Methyl-anilino)-N'-(propan-2-yl-idene)acetohydrazide.

ABSTRACT: The conformation of the title compound, C(12)H(17)N(3)O, is consolidated by an intra-molecular N-H⋯O hydrogen bond, generating an S(5) ring. In the crystal, inversion dimers linked by pairs of N-H⋯O inter-actions occur, resulting in R(2) (2)(8) ring motifs.

SUBMITTER: Salim M

PROVIDER: S-EPMC2970964 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-(4-Methyl-anilino)acetohydrazide.

Project description:In the title mol-ecule, C(9)H(13)N(3)O, the non-hydrogen atoms of the hydrazide group are essentially planar [maximum deviation = 0.028 (1) Å for one of the N atoms]. The mean plane of this group forms a dihedral angle of 83.34 (5)° with the plane of the benzene ring. In the crystal structure, mol-ecules are linked by inter-molecular N-H⋯O, N-H⋯N and weak C-H⋯N hydrogen bonds into a two-dimensional network parallel to the ab plane. Additional stabilization is provided by a weak C-H⋯π inter-action.

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Project description:The asymmetric unit of the title compound, C(23)H(27)Cl(2)N(3)O, contains two crystallographically independent mol-ecules in which the dihedral angles between the benzene rings are 70.1?(3) and 63.8?(3)°. In each mol-ecule an intra-molecular N-H?O hydrogen bond generates an S(7) ring. The atoms of the propyl grouping of one mol-ecule are disordered over two orientations with occupancies of 0.666?(6) and 0.334?(6). The crystal structure is stabilized by N-H?O and C-H?O hydrogen-bonding inter-actions.

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Project description:In the title compound, C(16)H(15)ClN(2)OS, the hydrazine group is twisted slightly: the C-N-N-C torsion angle is 175.46 (13)°. The dihedral angle between the two terminal aromatic rings is 87.01 (8)°. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops. The dimers are further linked by weak C-H⋯π inter-actions.

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Project description:In the title compound, C(20)H(19)N(3)OS, the central benzene ring makes dihedral angles of 45.36 (9) and 55.33 (9)° with the thio-phene ring and the dimethyl-substituted benzene ring, respectively. The dihedral angle between the thio-phene ring and dimethyl-substituted benzene ring is 83.60 (9)°. The thio-phene ring and the benzene ring are twisted from the mean plane of the C(=O)-N-N=C bridge [maximum deviation = 0.0860 (13) Å], with dihedral angles of 23.86 (9) and 24.77 (8)°, respectively. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring. In the crystal, mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds to the same acceptor atom, forming sheets lying parallel to the bc plane. The crystal packing also features C-H⋯π inter-actions.

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Project description:In the title ferrocene derivative, [Fe(C(5)H(5))(C(15)H(16)NO)], the dihedral angle between the best planes of the benzene and the substituted cyclo-penta-dienyl ring is 83.4 (1)°. The presence of a methyl substituent in the para position of the aniline group does not alter the crystal packing compared to that of 3-anilino-1-ferrocenylpropan-1-one [Leka et al. (2012 ▶). Acta Cryst. E68, m229]. The molecules are connected into centro-symmetric dimers via N-H⋯O hydrogen bonds. In addition, C-H⋯O and C-H⋯N contacts stabilize the crystal packing.

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2-Chloro-N-[4-(3-methyl-3-phenyl-cyclo-but-yl)-1,3-thia-zol-2-yl]-N'-(naphthalen-1-yl-methyl-idene)acetohydrazide.

Project description:In the mol-ecular structure of the title hydrazide derivative, C(27)H(24)ClN(3)OS, the acetohydrazide group is approximately planar, with a maximum deviation of 0.017 (3) Å. The dihedral angle between the naphthyl-ene system and the phenyl ring is 78.91 (18)°. The crystal structure is stabilized by one weak inter-molecular C-H⋯O hydrogen bond and two aliphatic C-H⋯π hydrogen-bonding associations.

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