2-[(2Z)-Azepan-2-ylidene]-1-(4-nitrophenyl)ethanone
نویسندگان
چکیده
The title compound, C(14)H(16)N(2)O(3), is an NH-vinyl-ogous amide (enaminone) produced by the reaction of 4-nitro-phenacyl bromide with azepane-2-thione. The conformation about the C=C bond [1.3927 (14) Å] is Z, which allows for the formation of an intra-molecular N-H⋯O hydrogen bond that leads to an S(6) loop. Inversion-related mol-ecules associate via N-H⋯O hydrogen bonds to form a 12-membered {⋯OC(3)NH}(2) synthon.
منابع مشابه
Crystal structure of methyl (2Z)-2-[(2Z)-2-(2-cyclopentylidenehydrazin-1-ylidene)-4-oxo-3-phenyl-1,3-thiazolidin-5-ylidene]ethanoate
In the title compound, C17H17N3O3S, the cyclo-pentane ring is disordered over two sets of sites with an occupancy ratio of 0.775 (8):0.225 (8) for the affected atoms. The thia-zolidinyl ring is planar (r.m.s. deviation = 0.024 Å) and forms a dihedral angle of 65.13 (8)° with the attached phenyl ring. The mol-ecular packing is stabilized by C-H⋯O and C-H⋯π inter-actions, forming a three-dimensio...
متن کامل1-(4-{[(1,3,3-Trimethylindolin-2-ylidene)methyl]diazenyl}phenyl)ethanone
The title compound, C20H21N3O, has crystallographic mirror symmetry with all non-H atoms apart from the methyl C atom of the CMe2 group lying on the mirror plane. Mol-ecules are linked into planar sheets parallel to (010) by phen-yl-azo C-H⋯N and phen-yl-ethanone C-H⋯O inter-actions. Methyl C-H⋯π inter-actions provide crosslinking between the planes.
متن کاملMethyl 2-((2Z,5Z)-4-oxo-3-phenyl-2-{2-[(1E)-1,2,3,4-tetrahydronaphthalen-1-ylidene]hydrazin-1-ylidene}-1,3-thiazolidin-5-ylidene)acetate
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].
متن کاملDimethyl (2Z)-2-[4-((1Z)-1-{2-[(2Z,5Z)-5-(2-methoxy-2-oxoethylidene)-4-oxo-3-phenyl-1,3-thiazolidin-2-ylidene]hydrazin-1-ylidene}ethyl)anilino]but-2-enedioate
The mol-ecule of the title compound, C26H24N4O7S, adopts a trans conformation about the central N-N bond, presumably to minimize steric between the substituents on these two atoms. An intra-molecular N-H⋯O hydrogen bond occurs. The phenyl ring is disordered over two sets of sites, with an occupancy ratio of 0.624 (8):0.376 (8). The azolidine ring is essentially planar [maximum deviation = 0.008...
متن کاملN′-[1-(4-Nitrophenyl)ethylidene]acetohydrazide
The title compound, C(10)H(11)N(3)O(3), was prepared by the reaction of acetohydrazide and 1-(4-nitro-phen-yl)ethanone. The asymmetric unit contains two crystallographically independent mol-ecules. Inversion-related mol-ecules form dimers, in which two N-H⋯O hydrogen bonds generate an inter-molecular R(2) (2)(8) ring.
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