3,4-Dinitro-1H-pyrazole benzene 0.25-solvate
نویسندگان
چکیده
The asymmetric unit of the title compound, 4C(3)H(2)N(2)O(4)·C(6)H(6), contains two independent dinitro-pyrazole mol-ecules and half a benzene solvent mol-ecule, which lies on a crystallographic inversion centre. Each pyrazole ring is essentially planar (mean deviations of 0.009 and 0.002 Å), with the two nitro groups rotated out of the plane [dihedral angles = 11.7 (2)/31.1 (1) and 21.8 (2)/25.0 (1)° for the two mol-ecules].
منابع مشابه
Synthesis of 5-substituted-3-methylsulfanyl-1-(2,4-dinitro phenyl)- 1H-pyrazole-4-carboxylic Acid Ethyl Esters as New Analgesic and Anti-inflammatory Agents
A new series of 5-substituted-3-methylsulfanyl-1-(2,4-dinitro phenyl)-1H-pyrazole-4-carboxylic acid ethyl esters were synthesized by reacting the amino group of 5-amino-3-methylsulfanyl-1-(2,4-dinitro phenyl)-1H-pyrazole-4carboxylic acid ethyl ester with acid anhydrides, acid chlorides and phenyl dithiocarbamates. The title compounds were investigated for analgesic, anti-inflammatory and ulcero...
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In the crystal structure of the title compound, C28H23F3N4S·CHCl3, the chloro-form solvate mol-ecules connect the pyrimidine mol-ecules into chains along [101] through weak C-H⋯N and C-H⋯Cl hydrogen-bond inter-actions. There are further connections between adjacent chains through F⋯Cl halogen contacts of 3.185 (3) Å, with the -CF3 group presenting a significant short F⋯F inter-chain distance of...
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متن کاملCrystal structure of (Z)-1-(3,4-dichlorophenyl)-3-methyl-4-[(naphthalen-1-ylamino)(p-tolyl)methylidene]-1H-pyrazol-5(4H)-one
The title Schiff base compound, C28H21Cl2N3O, was synthesized by the condensation of 1-(3,4-di-chloro-phen-yl)-3-methyl-4-(4-methyl-benzo-yl)-1H-pyrazol-5(4H)-one with 1-aminona-phthalene. The p-tolyl ring is normal to the pyrazole ring, with a dihedral angle of 88.02 (14)°, and inclined to the naphthalene ring system by 78.60 (12)°. The pyrazole ring is inclined to the naphthalene ring system ...
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011