3,4-Dihydroxybenzaldehyde thiosemicarbazone
نویسندگان
چکیده
The asymmetric unit of the title compound, C(8)H(9)N(3)O(2)S, contains three independent mol-ecules which are stacked approximately over each other. In the crystal structure, centrosymmetric pairs of mol-ecules are formed through inter-molecular hydr-oxy-hydr-oxy O-H⋯O and hydr-oxy-sulfur O-H⋯S hydrogen bonds which are, in turn, linked into a two-dimensional network by N-H⋯O(hydr-oxy) hydrogen bonds.
منابع مشابه
3,4-Dihydroxybenzaldehyde 4-phenylthiosemicarbazone
Mol-ecules of the title compound, C(14)H(13)N(3)O(2)S, are linked by inter-molecular O-H⋯O hydrogen bonds into centrosymmetric dimers forming R(2) (2)(4) rings which are further linked by O-H⋯S hydrogen bonds and weaker N-H⋯S and N-H⋯O hydrogen bonds to form a three-dimensional network.
متن کامل(E)-3,4-Dihydroxybenzaldehyde 4-ethylthiosemicarbazone
The title compound, C(10)H(13)N(3)O(2)S, was prepared by condensation of 3,4-dihydroxy-benzaldehyde with 4-ethyl-3-thio-semicarbazide. The mol-ecule adopts an E configuration with respect to the C=N bond. One of the OH substituents on the dihydroxy-benzene ring is disordered over the two possible 3-positions on either side of the ordered 4-hydr-oxy group. The occupancy of the major disorder com...
متن کامل4-Methylbenzaldehyde thiosemicarbazone
The title compound, C(9)H(11)N(3)S, was prepared by reacting 4-methyl-benzaldehyde with thio-semicarbazide. An intra-molecular N-H⋯N hydrogen bond helps to establish the observed mol-ecular conformation. The crystal packing is realized by inter-molecular N-H⋯S hydrogen bonds.
متن کامل(E)-3,4-Dihydroxybenzaldehyde 4-methylthiosemicarbazone
The title compound, C(9)H(11)N(3)O(2)S, adopts an E configuration with respect to the C=N bond. The mol-ecule is approximately planar, with an r.m.s. deviation from the mean plane through all 15 non-H atoms of 0.152 Å; the dihedral angle between the benzene ring plane and the least-squares plane through the thio-semicarbazone unit is 12.48 (7)°. A weak intra-molecular N-H⋯N inter-action contrib...
متن کامل2,4-Dihydroxybenzaldehyde 4-ethylthiosemicarbazone
The mol-ecular conformation of the title compound, C(10)H(13)N(3)O(2)S, is stabilized by an intramolecular O-H⋯N hydrogen bond. Adjacent mol-ecules are linked by O-H⋯O hydrogen bonds to furnish a zigzag chain.
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