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1-Ethyl-6-fluoro-7-(4-methyl-piperazin-4-ium-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylate hexa-hydrate.

ABSTRACT: In the title compound, C(17)H(20)FN(3)O(3)·6H(2)O, the pefloxacin (pef) neutral zwitterion is accompanied by six water mol-ecules of hydration. An extensive network of O-H?O and N-H?O hydrogen bonds help to establish the crystal packing.

SUBMITTER: An Z

PROVIDER: S-EPMC2960169 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

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1-Ethyl-6-fluoro-7-(4-methyl-piperazin-4-ium-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylate hexa-hydrate.

An Zhe Z Liang Qing-Cheng QC

Acta crystallographica. Section E, Structure reports online 20080116 Pt 2

In the title compound, C(17)H(20)FN(3)O(3)·6H(2)O, the pefloxacin (pef) neutral zwitterion is accompanied by six water mol-ecules of hydration. An extensive network of O-H⋯O and N-H⋯O hydrogen bonds help to establish the crystal packing. ...[more]

PMID: 21201468

Similar Datasets

Diaqua-bis-[1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxyl-ato]magnesium(II) hexa-hydrate.

Project description: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.

| S-EPMC3009197 | biostudies-other

catena-Poly[[[(1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ato-?O,O)copper(II)]-?-1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ato-?N:O,O] tetra-hydrate].

Project description: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 results in one-dimensional chains propogating along [010]. A network of O-H?O and N-H?O hydrogen bonds helps to establish the crystal structure.

| S-EPMC2960715 | biostudies-literature

Redetermination and invariom refinement of 1-cyclo-propyl-6-fluoro-4-oxo-7-(piperazin-4-ium-1-yl)-1,4-dihydro-quinoline-3-carboxyl-ate hexa-hydrate at 120 K.

Project description:The structure of the title compound, C(17)H(18)FN(3)O(3)·6H(2)O, has been redetermined at 120?K. An invariom refinement, a structural refinement using aspherical scattering factors from theoretically predicted multipole population parameters, yields accurate geometry and anisotropic displacement parameters, including hydrogen-bonding parameters. All potential hydrogen-bond donors and acceptors are involved in hydrogen bonding, forming an intricate three-dimensional network of N-H?O and O-H?O bonds.

| S-EPMC2959848 | biostudies-other

(E)-1-Ethyl-4-oxo-N'-(4-pyridylmethyl-ene)-1,4-dihydroquinoline-3-carbo-hydrazide.

Project description:In the title compound, C(18)H(16)N(4)O(2), the plane defined by the ethyl C atoms and the attached N atom is inclined to the adjacent pyridine ring at an angle of 67.87?(16)°. The dihedral angle between the two heterocyclic rings is 3.33?(16)°. The mol-ecular conformation is stabilized by an intra-molecular N-H?O hydrogen bond and the crystal structure by inter-molecular C-H?O hydrogen bonds, forming a one-dimensional structure.

| S-EPMC2970413 | biostudies-literature

Bis[8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carb-oxy-lic acid] 2,5-dicarb-oxy-benzene-1,4-di-carboxyl-ate octa-hydrate.

Project description:The asymmetric unit of the title compound, 2C(14)H(18)N(5)O(3) (+)·C(10)H(5)O(8) (2-)·8H(2)O, contains one [H(2)ppa](+)cation, one half of an [H(2)btec](2-) anion (H(4)btec = 1,2,4,5-benzene-tetra-carb-oxy-lic acid and Hppa = 8-ethyl-5-oxo-2-piperazin-1-yl-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carb-oxy-lic acid) that is completed by inversion symmetry and four water mol-ecules. In the crystal, the mol-ecules are connected by inter-molecular hydrogen-bonding inter-actions and π-π stacking between the benzene rings of the [H(2)btec](2-) anion and the pyrimidine rings of the [H(2)ppa](+) cation [centroid-centroid distance = 3.597 (3) Å], generating a three-dimensional supra-molecular structure.

| S-EPMC3099930 | biostudies-literature

4-[Bis(4-fluoro-phen-yl)meth-yl]piperazin-1-ium bis-(trichloro-acetate) 0.4-hydrate.

Project description:The title compound, C(17)H(20)F(2)N(2) (2+)·2C(2)Cl(3)O(2) (-)·0.4H(2)O, has twofold protonated N atoms. The trichloro-acetate anions each show one disordered Cl atom with site occupation factors of 0.945 (7):0.055 (7) 0.945 (8):0.055 (8). In the crystal, N-H⋯O, O(water)-H⋯O and O(water)-H⋯F inter-actions connect the components into a three-dimensional network.

| S-EPMC3343943 | biostudies-literature

4-(1-Cyclo-propyl-6-fluoro-4-oxo-1,4-dihydro-quinolin-7-yl)piperazin-1-ium 2,4,5-tricarb-oxy-benzene-1-carboxyl-ate monohydrate.

Project description:In the crystal of title compound, C(16)H(19)FN(3)O(+)·C(10)H(5)O(8) (-)·H(2)O, the water mol-ecule and the ions are connected by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds and π-π stacking [centroid-centroid separation = 3.602 (1) Å] between the benzene ring and the pyridine ring, generating a three-dimensional supra-molecular structure.

| S-EPMC3297959 | biostudies-literature

4-(3-Carb-oxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-7-quinol-yl)-1-methyl-piper-azin-ium picrate.

Project description: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, ?-? 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.

| S-EPMC2983575 | biostudies-literature

4-(3-Carb-oxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium 4-carb-oxy-benzoate-benzene-1,4-dicarb-oxy-lic acid (2/1).

Project description: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 ?-? stacking inter-actions [with a centroid-centroid distance of 3.402?(2)?Å], generating a three-dimensional supra-molecular structure.

| S-EPMC3099834 | biostudies-other

Aqua-bis[1-ethyl-6-fluoro-7-(4-methyl-piperazin-1-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxyl-ato]zinc(II) dihydrate.

Project description: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 mol-ecule in the apical position. A network of O-H?O and O-H?N hydrogen bonds is formed between the Zn(II) complexes and the uncoordinated water mol-ecules.

| S-EPMC2960459 | biostudies-literature

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