1-(4-Bromophenyl)-1-(4-nitrobenzoyl)thiourea
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چکیده
The title compound, C(14)H(10)BrN(3)O(3)S, crystallizes as two concomitant polymorphs that differ in colour (one yellow and one colourless). Only the structure of the colourless form could be determined. The mol-ecule exists in the thio-amide form with an intra-molecular N-H⋯O=C hydrogen bond across the thio-urea system. Mol-ecules are linked into layers parallel to (120) by Br⋯O(nitro) contacts [3.103 (1) Å], classical hydrogen bonds from the other NH function to the S atom and N(nitro)⋯O=C contacts. The layers are linked by weak C-H⋯O(nitro) hydrogen bonds to produce the observed three-dimensional network.
منابع مشابه
1-(4-Nitrobenzoyl)-3-(4-nitrophenyl)thiourea acetone hemisolvate
In the title compound, C(14)H(10)N(4)O(5)S·0.5C(3)H(6)O, the nitro-benzoyl and nitro-phenyl groups have trans and cis configurations, respectively, with respect to the thio-urea S atom. The mol-ecular conformation is stabilized by intra-molecular N-H⋯O and C-H⋯S hydrogen bonds. The acetone solvent mol-ecule possesses a crystallographically imposed twofold axis. In the crystal packing, thio-urea...
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The mol-ecule of the title compound, C(15)H(10)N(4)O(3)S(2), is almost planar (r.m.s. deviation = 0.1Å for all non-H atoms). An intra-molecular N-H⋯O=C hydrogen bond is observed. In the crystal, mol-ecules are connected into layers parallel to (10) by a classical inter-molecular hydrogen bond from the second NH group to a nitro O atom and by three weak hydrogen bonds of the C-H⋯X type (X = O or...
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