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Poly[bis-[?(2)-8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]nickel(II)].

ABSTRACT: The title compound, [Ni(C(14)H(16)N(5)O(3))(2)](n) or [Ni(ppa)(2)](n), where ppa is 8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ate, was synthesized under hydro-thermal conditions. The Ni(II) atom (site symmetry ) exhibits a distorted trans-NiN(2)O(4) octa-hedral geometry defined by two monodentate N-bonded and two bidentate O,O'-bonded ppa monoanions. The extended two-dimensional structure is a square grid. An inter-molecular N-H?O hydrogen bond occurs.

SUBMITTER: An Z

PROVIDER: S-EPMC2979888 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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Poly[bis-[μ(2)-8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]nickel(II)].

An Zhe Z Zhu Ling L

Acta crystallographica. Section E, Structure reports online 20100109 Pt 2

The title compound, [Ni(C(14)H(16)N(5)O(3))(2)](n) or [Ni(ppa)(2)](n), where ppa is 8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ate, was synthesized under hydro-thermal conditions. The Ni(II) atom (site symmetry ) exhibits a distorted trans-NiN(2)O(4) octa-hedral geometry defined by two monodentate N-bonded and two bidentate O,O'-bonded ppa monoanions. The extended two-dimensional structure is a square grid. An inter-molecular N-H⋯O hydrogen bond occurs. ...[more]

PMID: 21579609

Similar Datasets

Poly[bis-[8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]cadmium].

Project description:The title layered coordination polymer, [Cd(C(14)H(16)N(5)O(3))(2)](n) or [Cd(ppa)(2)](n), where ppa is 8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ate, was syn-thesized under hydro-thermal conditions. The Cd(II) atom (site symmetry 2) exhibits a distorted cis-CdN(2)O(4) octa-hedral geometry defined by two N-monodentate and two O,O'-bidentate ppa monoanions. The extended two-dimensional structure resulting from the bridging ppa species is a grid lying parallel to (001). An N-H?O hydrogen bond helps to establish the crystal packing.

| S-EPMC3009211 | biostudies-literature

Poly[[bis-[?(2)-8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]zinc(II)] dihydrate].

Project description:The title compound, {[Zn(C(14)H(16)N(5)O(3))(2)]·2H(2)O}(n) or [Zn(ppa)(2)]·2H(2)O}(n), where ppa = 8-ethyl-5,8-dihydro-5-oxo-2-(1-piperazin-yl)-pyrido(2,3-d)-pyrimidine-6-carboxyl-ate, was synthesized under hydro-thermal conditions. The Zn(II) atom (site symmetry ) exhibits a distorted trans-ZnN(2)O(4) octa-hedral geometry defined by two monodentate N-bonded and two bidentate O,O-bonded ppa monoanions. The extended two-dimensional structure arising from this connectivity is a square grid and the disordered uncoordinated water mol-ecules occupy cavities within the grid. An N-H?O hydrogen bond occurs.

| S-EPMC2970219 | biostudies-literature

Poly[[bis-[?(2)-8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]cobalt(II)] dihydrate].

Project description:The title compound, {[Co(C(14)H(16)N(5)O(3))(2)]·2H(2)O}(n) or [Co(ppa)(2)]·2H(2)O}(n), where ppa denotes the 8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carb-ox-yl-ate anion, was synthesized under hydro-thermal conditions. The Co(II) atom (site symmetry ) exhibits a distorted trans-CoN(2)O(4) octa-hedral geometry defined by two monodentate N-bonded and two bidentate O,O'-bonded ppa anions. The extended two-dimensional structure is a square grid, which is consolidated by N-H?O hydrogen bonds. The disordered uncoordinated water mol-ecules occupy cavities within the grid.

| S-EPMC2971434 | biostudies-literature

Diaqua-bis-[8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]copper(II) bis[4-(4-carboxyphenoxy)benzoate].

Project description:In the title compound, [Cu(C(14)H(17)N(5)O(3))(2)(H(2)O)(2)](C(14)H(9)O(5))(2), the Cu(2+) atom, located on an inversion centre, exhibits a distorted octa-hedral geometry, coordinated by four O atoms from two pipemidic acid ligands in equatorial positions and two water mol-ecules in axial positions. The pipemidic acid ligand acts a bidentate ligand and the single deprotonated 4,4'-oxydibenzoic acid acts as an anion. Classical N-H⋯O and O-H⋯O hydrogen bonds are present in the crystal structure.

| S-EPMC3052055 | biostudies-literature

Poly[[bis-[?(2)-8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato]manganese(II)] dihydrate].

Project description:In the title compound, {[Mn(C(14)H(16)N(5)O(3))(2)]·2H(2)O}(n), the Mn(II) atom (site symmetry ) exhibits a distorted trans-MnN(2)O(4) octa-hedral geometry defined by two monodentate N-bonded and two bidentate O,O'-bonded 8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ate anions. An N-H?O hydrogen bond is present in the crystal structure. The extended two-dimensional structure is a square grid and the disordered uncoordinated water mol-ecules occupy cavities within the grid.

| S-EPMC2961022 | biostudies-other

Diaqua-(5-carb-oxy-benzene-1,3-dicarboxyl-ato-?O(1))[8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ato-?(2)O(5),O(6)]zinc monohydrate.

Project description:In the title compound, [Zn(C(14)H(17)N(5)O(3))(C(9)H(4)O(6))(H(2)O)(2)]·H(2)O, the complex mol-ecule exists in a zwitterionic form. The Zn(II) ion exhibits a distorted tetra-gonal-pyramidal geometry, being coordinated by two O atoms from the zwitterionic 8-ethyl-5-oxo-2-(piperazin-4-ium-1-yl)-5,8-dihydro-pyrido[2,3-d]pyrimidine-6-carboxyl-ate (L) ligand, one O atom from the 5-carb-oxy-benzene-1,3-dicarboxyl-ate dianion, [Hbtc](2-), and two O atoms from two aqua ligands. In the crystal, N-H?O and O-H?O hydrogen bonds link the components into a three-dimensional structure. The crystal packing exhibits ?-? inter-actions between the aromatic rings, with centroid-centroid distances in the range 3.466?(3)-3.667?(3)?Å.

| S-EPMC3569215 | 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

Tetra-aqua-bis(2-oxo-1,2-dihydro-quinoline-4-carboxyl-ato-κO)nickel(II).

Project description:In the title compound, [Ni(C(10)H(6)NO(3))(2)(H(2)O)(4)], the central Ni(II) atom is located on an inversion center and coordinated in a slightly distorted octa-hedral geometry by two O atoms from two 2-oxo-1,2-dihydro-quinoline-4-carboxyl-ate ligands and four water mol-ecules, all of which act as monodentate ligands. The crystal structure features an extensive network of inter-molecular hydrogen-bonding inter-actions (O-H⋯O and N-H⋯O) and offset face-to-face π-π stacking inter-actions [centroid-centroid distances = 3.525 (3) and 3.281 (5) Å].

| S-EPMC2960272 | biostudies-literature

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

(4-Oxido-2-oxo-1,2-dihydro-pyrimidine-5-carboxyl-ato-κO,O)(4-oxido-2-oxo-1,2-dihydro-pyrimidin-3-ium-5-carboxyl-ato-κO,O)bis-(1,10-phenanthroline-κN,N')gadolinium(III) dihydrate.

Project description:The title compound, [Gd(C(5)H(2)N(2)O(4))(C(5)H(3)N(2)O(4))(C(12)H(8)N(2))(2)]·2H(2)O, was obtained from a solvothermal reaction of 2,4-dihydroxy-pyrimidine-5-carboxylic acid (H(3)iso), GdCl(3)·6H(2)O and 1,10-phenanthroline (phen). The Gd(III) ion is located on a twofold rotation axis and is coordinated by four N atoms from two chelating phen ligands and four O atoms (5-carboxyl-ate and 4-oxido O atoms) from H(2)iso(-) and Hiso(2-) ligands. The mol-ecules are linked into a three-dimensional network by N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonds. The H atom involved in an N-H⋯N hydrogen bond is disordered around a twofold rotation axis with half occupancy.

| S-EPMC2960513 | biostudies-literature

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