Thiophene-2-carbaldehyde 2,4-dinitrophenylhydrazone
نویسندگان
چکیده
In the approximately planar molecule of the title compound, C(11)H(8)N(4)O(4)S, the dihedral angle between the thio-phene and benzene rings is 5.73 (10)°. In the crystal structure, bifurcated inter/intra-molecular N-H⋯(O,O) hydrogen bonds are present. The intermolecular links lead to inversion dimers containing an R(2) (2)(12) graph-set motif.
منابع مشابه
5-[(2-Hydroxyethyl)(methyl)amino]thiophene-2-carbaldehyde
In the title compound, C8H11NO2S, the aldehyde group is approximately coplanar with the thio-phene ring [maximum deviation = 0.023 (2) Å]. In the crystal, mol-ecules are linked by O-H⋯O hydrogen bonds into supra-molecular chains propagating along the a-axis direction.
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The asymmetric unit of the title compound, C(13)H(8)Cl(2)N(4)O(4), contains two independent but similar and almost planar mol-ecules. An intra-molecular N-H⋯O hydrogen bond is observed in each mol-ecule.
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In the title compound, C(11)H(8)O(3)S(2), the dihedral angle between the mean planes of the two thio-phene rings is 65.10 (10)°. Intra-molecular C-H⋯O inter-actions form S(6) and S(7) ring motifs. In the crystal, chains along the a axis are formed by C-H⋯O inter-actions. Adjacent chains are connected into a three-dimensional network by C-H⋯O and O-H⋯O inter-actions.
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The title compound, C(12)H(9)IN(2)OS, has an overall U-shape, with a dihedral angle of 21.4 (3)° between the thio-phene and benzene rings. In the crystal, supra-molecular chains mediated by N-H⋯O hydrogen bonds are formed along the b-axis direction.
متن کاملCrystal structure of 5-[bis(4-ethoxyphenyl)amino]thiophene-2-carbaldehyde
In the title compound, C21H21NO3S, the planes of the two benzene rings are nearly perpendicular to one another [dihedral angle = 84.50 (10)°] and they are oriented with respect to the plane of the thio-phene ring at dihedral angles of 59.15 (9) and 66.61 (9)°. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds, forming supra-molecular chains propagating along the b-axis direction.
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