N′-[(3-Methyl-2-thienyl)carbonyl]isonicotinohydrazide
نویسندگان
چکیده
In the title compound, C(12)H(11)N(3)O(2)S, the pyridine ring is inclined to the thio-phene ring, forming a dihedral angle of 34.96 (7)°. The mean plane through the hydrazide unit forms dihedral angles of 21.57 (8) and 53.08 (8)°, respectively, with the pyridine and thio-phene rings. The two O atoms are twisted away from each other, as indicated by the C-N-N-C torsion angle of -81.27 (15)°. In the crystal structure, mol-ecules are linked into an extended three-dimensional network by inter-molecular N-H⋯N, N-H⋯O and C-H⋯O hydrogen bonds. The crystal structure also features a short S⋯O [3.2686 (10) Å] inter-action and a weak inter-molecular C-H⋯π inter-action.
منابع مشابه
N′-[(5-Methylfuran-2-yl)methylene]isonicotinohydrazide
The title compound, C(12)H(11)N(3)O(2), was prepared by the reaction of isonicotinohydrazide and 5-methyl-furan-2-carbalde-hyde. The pyridine ring makes a dihedral angle of 46.90 (9)° with the mean plane of the furan ring. The crystal packing is stabilized by a bifurcated inter-molecular N-H⋯(N,O) inter-action.
متن کاملCrystal structures of (E)-N′-(2-hydroxy-5-methylbenzylidene)isonicotinohydrazide and (E)-N′-(5-fluoro-2-hydroxybenzylidene)isonicotinohydrazide
Two derivatives of the well-known iron chelator, (E)-N'-(2-hy-droxy-benzyl-idene)isonicotinohydrazide (SIH), substituted in the 5-position of the 2-hy-droxy-benzene ring by a methyl and a fluorine group viz. (E)-N'-(2-hy-droxy-5-methyl-benzyl-idene)isonicotinohydrazide, C14H13N3O2, (I), and (E)-N'-(5-fluoro-2-hy-droxy-benzyl-idene)isonicotinohydrazide, C13H10FN3O2, (II), have been prepared and ...
متن کامل(E)-N′-(5-Bromo-2-methoxybenzylidene)isonicotinohydrazide
The asymmetric unit of the title compound, C(14)H(12)BrN(3)O(2), contains two independent mol-ecules in which the dihedral angles between the benzene ring and the pyridine ring are 24.4 (6) and 23.7 (6)°. The mol-ecules exist in a trans configuration with respect to the central methyl-idene units. In the crystal, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains...
متن کامل2-Methyl-3-(5-methyl-2-thienyl)-5-phenylperhydropyrrolo[3,4-d]isoxazole-4,6-dione
In the mol-ecule of the title compound, C(17)H(16)N(2)O(3)S, the phenyl ring is oriented with respect to the thio-phene and succinimide rings at dihedral angles of 88.08 (3) and 57.81 (3)°, respectively; the dihedral angle between the thio-phene and succinimide rings is 35.69 (3)°. The isoxazole ring adopts an envelope conformation with the N atom at the flap position. In the crystal structure,...
متن کاملMethyl 2-(2-{[(benzyloxy)carbonyl]amino}propan-2-yl)-5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylate
In the title compound, C(17)H(19)N(3)O(6), the dihedral angle between the two aromatic rings is 45.9 (1)°. The crystal structure is stabilized through inter-molecular N-H⋯O hydrogen bonds and intra-molecular O-H⋯O hydrogen bonds are also present.
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2009