(E)-N′-[1-(Thiophen-2-yl)ethylidene]isonicotinohydrazide
نویسندگان
چکیده
In the title compound, C(12)H(11)N(3)OS, the dihedral angle between the pyridine and thio-phene rings is 46.70 (9)° and the C-N-N-C torsion angle is 178.61 (15)°. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops.
منابع مشابه
Crystal structure of (E)-N-phenyl-N′-[1-(thiophen-2-yl)ethylidene]formohydrazide
In the title compound, C13H12N2OS, the planes of the thio-phene and phenyl rings are nearly perpendicular to each other, making a dihedral angle of 86.42 (12)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, forming a helical chain along the b-axis direction.
متن کاملCrystal structures of the Schiff base derivatives (E)-N′-[(1H-indol-3-yl)methylidene]isonicotinohydrazide ethanol monosolvate and (E)-N-methyl-2-[1-(2-oxo-2H-chromen-3-yl)ethylidene]hydrazinecarbothioamide
The crystal structures of two title Schiff base derivatives, C15H12N4O·C2H6O (1·EtOH) and C13H13N3O2S (2), were determined at 110 and 100 K, respectively. In the crystal of compound 1·EtOH, the (E)-N'-[(1H-indol-3-yl)methyl-idene]isonicotinohydrazide and ethanol mol-ecules are linked by O-H⋯O, N-H⋯O and N-H⋯N hydrogen bonds, forming a tape structure running along the b-axis direction. The tapes...
متن کاملN,N′-Bis[(E)-1-(thiophen-3-yl)ethylidene]ethane-1,2-diamine
The complete mol-ecule of the title compound, C(14)H(16)N(2)S(2), is generated by a crystallographic inversion centre. The thio-phene residue is close to being coplanar with the imine group [C-C-C-N torsion angle = 6.5 (2)°], and the conformation about the imine C=N bond [1.281 (2) Å] is E. In the crystal, the three-dimensional architecture is consolidated by C-H⋯N, C-H⋯π and S⋯S [3.3932 (7) Å]...
متن کاملN′-[1-(5-Bromo-2-hydroxyphenyl)ethylidene]isonicotinohydrazide monohydrate: crystal structure and Hirshfeld surface analysis
In the title isonicotinohydrazide hydrate, C14H12BrN3O2·H2O {systematic name: N'-[(1E)-1-(5-bromo-2-hy-droxy-phen-yl)ethyl-idene]pyridine-4-carbohydrazide monohydrate}, the central CN2O region of the organic mol-ecule is planar and the conformation about the imine-C=N bond is E. While an intra-molecular hy-droxy-O-H⋯N(imine) hydrogen bond is evident, the dihedral angle between the central resid...
متن کامل(E)-1-(2,4-Dinitrophenyl)-2-[1-(thiophen-2-yl)ethylidene]hydrazine
The mol-ecule of the title compound, C(12)H(10)N(4)O(4)S, is slightly twisted, with a dihedral angle of 8.23 (9)° between the benzene and thio-phene rings. One nitro group is co-planar [O-N-C-C torsion angles = -0.5 (3) and -1.9 (3)°] whereas the other is slightly twisted with respect to the benzene ring [O-N-C-C torsion angles = -5.1 (3) and -5.7 (3)°]. In the crystal, the mol-ecules are linke...
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عنوان ژورنال:
دوره 68 شماره
صفحات -
تاریخ انتشار 2012