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Poly[(?(3)-quinoline-6-carboxyl-ato-?(3)N:O:O')silver(I)].

ABSTRACT: In the title coordination polymer, [Ag(C(10)H(6)NO(2))](n), the Ag(I) cation is coordinated by two O atoms and one N atom from three 6-quinoline-carboxyl-ate anions in a distorted T-shaped AgNO(2) geometry, in which the O-Ag-O angle is 160.44?(9)°. The 6-quinoline-carboxyl-ate anion bridges three Ag(+) cations, forming a nearly planar polymeric sheet parallel to (101). The distance between Ag(+) cations bridged by the carboxyl group is 2.9200?(5)?Å. In the crystal, ?-? stacking is observed between parallel quinoline ring systems, the centroid-centroid distance being 3.7735?(16)?Å.

SUBMITTER: Yeh CW

PROVIDER: S-EPMC3379188 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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Poly[(μ(3)-quinoline-6-carboxyl-ato-κ(3)N:O:O')silver(I)].

Yeh Chun-Wei CW Jong Ay A Tsou Chi-Hui CH Huang Fu-Chang FC Suen Maw-Cherng MC

Acta crystallographica. Section E, Structure reports online 20120531 Pt 6

In the title coordination polymer, [Ag(C(10)H(6)NO(2))](n), the Ag(I) cation is coordinated by two O atoms and one N atom from three 6-quinoline-carboxyl-ate anions in a distorted T-shaped AgNO(2) geometry, in which the O-Ag-O angle is 160.44 (9)°. The 6-quinoline-carboxyl-ate anion bridges three Ag(+) cations, forming a nearly planar polymeric sheet parallel to (101). The distance between Ag(+) cations bridged by the carboxyl group is 2.9200 (5) Å. In the crystal, π-π stacking is observed betwe ...[more]

PMID: 22719386

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Project description:In the title compound, [Ag(C(16)H(10.5)NO(2))(2)], the Ag(I) cation (site symmetry 2) is coordinated by two N atoms in a near-linear AgN(2) arrangement. Two carboxyl-ate O atoms from two additional 2-phenyl-quinoline-4-carboxyl-ate ligands form long Ag-O bonds [2.6585?(17)?Å], resulting in a distorted square-planar arrangement. The bridging ligands result in infinite corrugated sheets propagating in (010). An O-H?O hydrogen bond, disordered about a twofold axis, completes the structure.

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catena-Poly[[diaqua-strontium]-bis-(?-quinoline-3-carboxyl-ato)].

Project description:The title compound, [Sr(C(10)H(6)NO(2))(2)(H(2)O)(2)](n), contains an eight-coordinate Sr(II) ion displaying a distorted square-anti-prismatic geometry, two quinoline-3-carboxyl-ate ligands and two terminal water mol-ecules. The Sr(II) atom is surrounded by six carboxyl-ate O atoms from four separate quinoline-3-carboxyl-ate ligands and two O atoms from two coordinated water mol-ecules. The bridging carboxyl-ate O atoms [Sr-O = 2.498?(3) and 2.495?(3)?Å] link Sr(II) atoms, forming a chain substructure extending along the c axis. The chains are linked by O-H?N and O-H?O hydrogen bonds, giving a three-dimensional framework structure.

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catena-Poly[[diaqua-calcium(II)]-bis-(?-quinoline-3-carboxyl-ato)].

Project description:In the title complex, [Ca(C(10)H(6)NO(2))(2)(H(2)O)(2)](n), the Ca(II) ion is eight-coordinated by six carboxyl-ate O atoms from four separate quinoline-3-carboxyl-ate ligands, two of which are bidentate chelate and two bridging, and two water mol-ecules in a distorted square-anti-prismatic geometry. The bridging groups form a polymeric chain substructure extending along the c axis, the chains being connected by coordinated-water O-H?N and O-H?O(carboxyl-ate) hydrogen bonds into a three-dimensional framework structure.

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Poly[(?(2)-quinoline-3-carboxyl-ato-?N:O)(?(2)-quinoline-3-carboxyl-ato-?N:O,O')cadmium].

Project description:In the title compound, [Cd(C(10)H(6)NO(2))(2)](n), the Cd(II) atom is coordinated by three O atoms and two N atoms from four quinoline-3-carboxyl-ate (L(-)) ligands, leading to a distorted trigonal-bipyramidal geometry. The L(-) ligands link the Cd(II) atoms into a plane parallel to (100), with one ligand being tridentate, coordinating via the N atom and chelating a second Cd atom, and the other being bidentate, bridging two Cd atoms via the N and one O atom.. This two-dimensional network extends into a double-layer network by ?-? inter-actions, with centroid-centroid distances of 3.680?(2) and 3.752?(2)?Å. Another type of ?-? inter-action between pyridine rings [centroid-centroid distance = 3.527?(2)?Å] leads to a three-dimensional supra-molecular architecture.

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catena-Poly[[[diaqua-nickel(II)]-?-pyrazine-2-carboxyl-ato-silver(I)-?-pyrazine-2-carboxyl-ato] nitrate dihydrate].

Project description:In the polymeric complex of the title compound, {[AgNi(C(5)H(3)N(2)O(2))(2)(H(2)O)(2)]NO(3)·2H(2)O}(n), the Ag(I) ion displays an angular coordination geometry with two N atoms from pyrazine-2-carboxyl-ate ligands, and the Ni(II) ion is hexa-coordinated by two O atoms from two water mol-ecules, two O and two N atoms from pyrazine-2-carboxyl-ate ligands in a distorted octa-hedral geometry. In the crystal, the Ag(I) and Ni(II) ions lie on a mirror plane and an inversion centre, respectively. The complex chains, the nitrate ions and the uncoordinated water mol-ecules are linked together through O-H?O hydrogen bonds and weak Ag?O inter-actions [2.619?(17)-2.749?(17)?Å] into a three-dimensional network.

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catena-Poly[silver(I)-?-acridine-9-carboxyl-ato-?N:O,O'].

Project description:In the title coordination polymer, [Ag(C(14)H(8)NO(2))](n), the Ag(I) cation is coordinated by two O atoms and one N atom from two symmetry-related acridine-9-carboxyl-ate ligands in a distorted trigonal-planar geometry. The metal atoms are connected by the ligands to form chains running parallel to the b axis. ?-? stacking inter-actions [centroid-to-centroid distances 3.757?(2)-3.820?(2)?Å] and weak Ag?O inter-actions further link the chains to form a layer network parallel to the ab plane. The Ag(I) cation is disordered over two positions, with refined site-occupancy factors of 0.73?(3):0.27?(3).

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catena-Poly[zinc(II)-?-aqua-?O:O-bis-(?-quinoline-4-carboxyl-ato-?O:O')].

Project description:The asymmetric unit of the title complex, [Zn(C(10)H(6)NO(2))(2)(H(2)O)](n), consists of one quinoline-4-carboxyl-ate anion, half of a Zn(2+) cation and half of a coordinated water mol-ecule. The cation and the water O atom have crystallographically imposed inversion and twofold rotation symmetry, respectively. The metal centre displays an elongated ZnO(6) octa-hedral coordination geometry provided by the O atoms of four anions at the equatorial plane and two axial water mol-ecules. Each anion and water mol-ecule act as bridges between Zn(II) cations, forming a polymeric chain parallel to [001]. The chains are further linked into a three-dimensional framework through O-H?N hydrogen bonds.

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Poly[[bis-(nitrato-?O)bis-(?(4)-pyridine-4-carboxyl-ato)tetra-kis-(?(3)-pyridine-4-carboxyl-ato)octa-silver(I)] hemihydrate].

Project description:In the title coordination polymer, {[Ag(8)(C(6)H(4)NO(2))(6)(NO(3))(2)]·0.5H(2)O}(n), two Ag(I) ions are two-coordinate within an AgN(2) set and six are three-coordinate within AgN(2)O and AgO(3) sets. The Ag-N and Ag-O distances are in the ranges 2.150?(5)-2.198?(5) and 2.142?(4)-2.702?(5)?Å, respectively. A two-dimensional coordination network is formed parallel to (100). The O atom of the disordered solvent water mol-ecule is located on an inversion center.

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