4-(3-Carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-7-quinolyl)-1-methylpiperazinium picrate
نویسندگان
چکیده
The pefloxacinium cation of the title salt, C(17)H(21)FN(3)O(3) (+)·C(6)H(2)N(3)O(7) (-), is composed of an essentially planar quinoline ring system [maximum deviation = 0.021 (2) Å] and a piperazine ring, which adopts a chair conformation. In the picrate anion, the two O atoms of one of the o-NO(2) groups are disordered over two positions, with an occupancy ratio of 0.56 (4):0.44 (4). In the crystal structure, cations and anions are connected by inter-molecular N-H⋯O, O-H⋯O, C-H⋯O and C-H⋯F hydrogen bonds, forming a three-dimensional network. In addition, π-π inter-actions between the pyridine rings and between the benzene rings of the anions, with centroid-centroid distances of 3.6103 (12) and 3.5298 (11) Å, respectively, are observed.
منابع مشابه
Bis[1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylato-κ2 O 3,O 4]copper(II)
In the title compound, [Cu(C(17)H(19)FN(3)O(3))(2)], the Cu(II) atom (site symmetry ) exhibits a slightly distorted CuO(4) square-planar geometry defined by two bidentate O,O'-bonded 1-ethyl-6-fluoro-7-(4-methyl-piperazin-1-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxyl-ate (perfloxacinate) anions.
متن کاملcatena-Poly[[[(1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylato-κ2 O 3,O 4)copper(II)]-μ-1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylato-κ3 N 7′:O 3,O 4] tetrahydrate]
In the title compound, {[Cu(C(16)H(17)FN(3)O(3))(2)]·4H(2)O}(n), the Cu(II) atom is bonded to two O,O'-bidentate 1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ate (norf) monoanions and a symmetry-generated N-bonded norf anion, resulting in a distorted square-pyramidal coordination environ-ment with the N atom occupying the apical site. The bridging norf anion result...
متن کاملAquabis[1-ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylato]zinc(II) dihydrate
The title compound, [Zn(C(17)H(19)FN(3)O(3))(2)(H(2)O)]·2H(2)O or [Zn(pef)(2)(H(2)O)]·2H(2)O, where pef is 1-ethyl-6-fluoro-7-(4-methyl-piperazin-4-yl)-4-oxo-1,4-dihydro-quinoline-3-carb-oxyl-ate, was synthesized under hydro-thermal conditions. The Zn(II) atom exhibits a distorted ZnO(5) square-pyramidal geometry defined by two bidentate O,O-bonded pef anions in the basal plane and one water mo...
متن کاملDiaquabis[1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylato]magnesium(II) hexahydrate
In the title compound, [Mg(C(16)H(17)FN(3)O(3))(2)(H(2)O)(2)]·6H(2)O, the Mg(2+) ion (site symmetry ) exhibits a distorted MgO(6) octa-hedral geometry defined by two O,O-bidentate 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazin-yl)-3-quinoline-carb-oxyl-ate (norf) anions and two water mol-ecules. In the crystal, O-H⋯O and O-H⋯N hydrogen bonds help to establish the packing.
متن کامل4-(3-Carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium 4-carboxybenzoate–benzene-1,4-dicarboxylic acid (2/1)
In the title compound, C(16)H(19)FN(3)O(3) (+)·C(8)H(5)O(4) (-)·0.5C(8)H(6)O(4), the benzene-1,4-dicarb-oxy-lic acid mol-ecule is located on a centre of symmetry. In the crystal, the mol-ecules and ions are connected by inter-molecular C-H⋯O and O-H⋯O hydrogen bonds and π-π stacking inter-actions [with a centroid-centroid distance of 3.402 (2) Å], generating a three-dimensional supra-molecular ...
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