(E)-3-Chloro-N′-(2-fluorobenzylidene)thiophene-2-carbohydrazide
نویسندگان
چکیده
The title compound, C12H8ClFN2OS, is a hydrazide derivative adopting an E conformation with an azomethine N=C double bond length of 1.272 (2) Å. The mol-ecular skeleton is approximately planar; the terminal five- and six-membered rings form a dihedral angle of 5.47 (9)°. In the crystal, mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds into zigzag chains propagating in [100].
منابع مشابه
(E)-N′-(2-Fluorobenzylidene)furan-2-carbohydrazide
The title compound, C(12)H(9)FN(2)O(2), was prepared by the reaction of 2-fluoro-benzaldehyde and furan-2-carbohydrazide. The furan ring is disordered over two sets of sites with refined occupancies of 0.60 (3):0.40 (3). The major and minor components of the furan ring make dihedral angles of 51.9 (6) and 38.0 (10)°, respectively, with the benzene ring. In the crystal, mol-ecules are linked via...
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The title compound, C(13)H(9)N(3)OS, was prepared by the reaction of thio-phene-2-carbohydrazide and 4-formyl-benzonitrile. The dihedral angle between the benzene and thio-phene rings is 11.9 (1)°. In the crystal structure, mol-ecules are linked into centrosymmetric dimers by pairs of N-H⋯O hydrogen bonds.
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In the title compound, C(13)H(12)N(2)O(2)S, the dihedral angle between the aromatic rings is 15.20 (11)°. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops.
متن کاملN′-(4-Bromobenzylidene)thiophene-2-carbohydrazide
In the title compound, C(12)H(9)BrN(2)OS, the dihedral angle between the aromatic rings is 10.0 (2)°. In the crystal structure, inversion dimers linked by pairs of N-H⋯O hydrogen bonds occur, generating R(2) (2)(8) loops. Weak aromatic π-π stacking [centroid-centroid separations = 3.825 (3) and 3.866 (3) Å] also occurs.
متن کاملN′-[(5-Methyl-2-furyl)methylene]thiophene-2-carbohydrazide
In the title compound, C(11)H(10)N(2)O(2)S, the dihedral angle between the five-membered aromatic rings is 10.24 (12)°. In the crystal structure, mol-ecules are linked by bifurcated N-H⋯(O,N) hydrogen bonds, generating [001] chains.
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