2-(4-Aminobenzenesulfonamido)-4,6-dimethylpyrimidin-1-ium 2-carboxy-4,6-dinitrophenolate
نویسندگان
چکیده
In the structure of the phenolate salt of the sulfa drug sulfamethazine with 3,5-dinitro-salicylic acid, C12H15N4O2S(+)·C7H3N2O7 (-), the dihedral angle between the pyrimidine and benzene rings of the cation is 59.70 (17)°. In the crystal, cation-anion hydrogen-bonding inter-actions involving pyrim-idine-carb-oxy N(+)-H⋯O and amine-carb-oxy N-H⋯O pairs give a cyclic R 2 (2)(8) motif while secondary N-H⋯O hydrogen bonds between the aniline group and both sulfone and nitro O-atom acceptors give a two-dimensional structure extending in (001).
منابع مشابه
2-Isopropyl-6-methyl-4-oxo-3,4-dihydropyrimidin-1-ium 2-carboxy-4,6-dinitrophenolate monohydrate
In the title mol-ecular salt, C(8)H(13)N(2)O(+)·C(7)H(3)N(2)O(7) (-)·H(2)O, the pyrimidinium cation is essentially planar, with a maximum deviation of 0.009 (1) Å. The cation undergoes an enol-keto tautomerism during the crystallization. In the crystal, the ion pairs and water mol-ecules are connected via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, forming two-dimensional networks parallel to the bc...
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In the title compound, C(6)H(10)N(3) (+)·C(5)H(6)O(6)P(-), the cation and anion are linked by pairs of N-H⋯O hydrogen bonds. There are additional inter-molecular N-H⋯N hydrogen bonds, which generate centrosymmetric tetramers of two cations and two anions.
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In the crystal structure of the title compound, C(6)H(10)N(3) (+)·C(7)H(2)I(3)O(2) (-)·C(7)H(3)I(3)O(2), two R(2) (2)(8) motifs are observed. One is generated by the inter-action of the 2-amino-4,6-dimethyl-pyrimidin-1-ium cation with the carboxyl-ate group of the 2,3,5-triiodo-benzoate anion via N-H⋯O hydrogen bonds. The other R(2) (2)(8) motif is formed by the inter-action of two centrosymmen...
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Bis[2-(4,6-dimethyl-pyrimidin-2-ylsulfan-yl)eth-yl]amine under hydro-thermal conditions has unexpectedly been transformed into the title compound, C(32)H(44)N(10)S(4). In the title mol-ecule, the zigzag 3,10-diaza-6,7-disulfanyldodecyl skeleton has two dimethyl-pyrimidinylsulfanyl groups at both ends, and the aza atoms each carry a dimethyl-pyrimidinyl unit. The N atoms in the skeleton show a p...
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