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Poly[triaqua-[μ(4)-3-(4-carboxyl-atophen-oxy)propionato-κO:O':O'':O'''][μ(3)-3-(4-carboxyl-atophen-oxy)propionato-κO:O':O'']dizinc].

ABSTRACT: The coordination polymer [Zn(2)(C(10)H(8)O(5))(2)(H(2)O)(3)](n) adopts a layer structure in which the two independent Zn(II) ions exist in trigonal-bipyramidal coordination geometries. One carboxyl-ate dianion binds to a monoaqua-coordinated metal ion through the aliphatic carboxyl-ate end and to the diaqua-coordinated metal ion through the aromatic carboxyl-ate end; the other dianion binds in the reverse manner. Three of the four carboxyl-ate ends of the two dianions are also engaged in bridging inter-actions; these lead to a layer structure parallel to (100). Adjacent layers are linked by O-H(water)⋯O hydrogen bonds into a three-dimensional network.

SUBMITTER: Gao S

PROVIDER: S-EPMC3274937 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Poly[(μ(2)-2-hydr-oxy-2-methyl-propionato-κO,O:O)(μ(2)-2-hydr-oxy-2-methyl-propionato-κO:κO)dioxido-uranium(VI)].

Project description:In the title compound, [UO(2)(C(4)H(7)O(3))(2)](n), the dioxouranium(VI) units are linked by 2-hydr-oxy-2-methyl-propionate ligands into a honeycomb structure. The U atom is seven-coordinate in a penta-gonal-bipyramidal geometry. The uncoordinated hydr-oxy groups of the 2-hydr-oxy-2-methyl-propionate ions inter-act with the O atom of the uranyl and with the coordinated hydr-oxy group of an adjacent 2-hydr-oxy-2-methyl-propionate ion through O-H⋯O hydrogen bonds.

| S-EPMC2968812 | biostudies-literature

Tetra-kis(μ-2-phen-oxy-propionato)-κO,O':O';κO:O,O',κO:O'-bis-[(1,10-phenanthroline-κN,N')(2-phen-oxy-propionato-κO,O')praseodymium(III)].

Project description:In the centrosymmetric binuclear title complex, [Pr(2)(C(9)H(9)O(3))(6)(C(12)H(8)N(2))(2)], the two Pr(III) ions are linked by four 2-phen-oxy-propionate (L) groups through their bi- and tridentate bridging modes. Each Pr(III) ion is nine-coordinated by one 1,10-phenanthroline mol-ecule, one bidentate carboxyl-ate group and four bridging carboxyl-ate groups in a distorted PrN(2)O(7) monocapped square-anti-prismatic geometry. The title compound is isotypic with its terbium- and dysprosium-containing analogues.

| S-EPMC3200949 | biostudies-literature

catena-Poly[[[bis-[μ-3-(4-carb-oxy-phen-oxy)propionato]-κO,O:O;κO:O,O-bis-[aqua-(N,N-dimethyl-formamide-κO)cadmium]]-μ-4,4'-bipyridine-κN:N'] dinitrate].

Project description:In the title coordination polymer, {[Cd(2)(C(10)H(9)O(5))(2)(C(10)H(8)N(2))(2)(C(3)H(7)NO)(2)(H(2)O)(2)](NO(3))(2)}(n), the 3-(4-carb-oxy-phen-oxy)propionate monoanion O,O'-chelates to a Cd(II) cation through the aliphatic carboxyl-ate end. One of these O atoms is also connected to the metal cation from an inversion-related metal atom. The five O atoms bonded to the metal centre form a penta-gon, above and below which are located the N atoms of the 4,4'-bipyridine mol-ecules. The polycationic ribbon propagates along the b axis of the unit cell. The (aromatic) carboxyl end of the monoanion connects adjacent ribbons into a layer motif in the (102) plane. The nitrate ions are hydrogen bonded to the layer. The geometry of the Cd(II) atom is a trans-N(2)O(5)Cd penta-gonal bipyramid.

| S-EPMC3274930 | biostudies-literature

catena-Poly[[triaqua-(pyridine-κN)nickel(II)]-μ-sulfato-κO:O'].

Project description:The title compound, [Ni(SO(4))(C(5)H(5)N)(H(2)O)(3)](n), was synthesized by the hydro-thermal reaction of NiSO(4)·6H(2)O, pyridine and water. The central Ni(II) atom is coordinated in a distorted octa-hedral environment by a pyridine N atom, three aqua O atoms and two O atoms of bridging sulfate anions, yielding a zigzag chain. A three-dimensional network is generated via complex hydrogen bonds involving the sulfate and aqua ligands and a pyridine C-H group.

| S-EPMC2971987 | biostudies-literature

catena-Poly[(triaqua-cadmium)-μ-5-hy-droxy-isophthalato-κO,O:O].

Project description:The title compound, [Cd(C(8)H(4)O(5))(H(2)O)(3)](n), a one-dimensional chain complex of 5-hy-droxy-isophthalate with Cd(II), was prepared by a hydro-thermal reaction. The Cd(II) ion is coordinated by three water O atoms and three carboxyl-ate O atoms of two different 5-hy-droxy-isophthalate ligands, which act as bidentate and monodentate ligands. The crystal structure is stabilized by O-H⋯O hydrogen bonds.

| S-EPMC3246980 | biostudies-literature

Poly[[?-aqua-triaqua-[?(6)-1,3,4,6-tetra-kis-(carboxyl-atometh-yl)-7,8-diphenyl-glycoluril]dizinc] monohydrate].

Project description:In the crystal structure of the title coordination polymer, {[Zn(2)(C(24)H(18)N(4)O(10))(H(2)O)(4)]·H(2)O}(n), the mol-ecular building block (MBB), viz [Zn(2)(CO(2))(4)(H(2)O)(4)], comprises two Zn(II) cations, each bridged by three carboxyl-ate groups from different ligand mol-ecules. These two Zn(II) cations exhibit different coordination environments: a distorted trigonal-pyramidal coordination, as an inter-mediate, is formed by the two coordinated water mol-ecules and three carboxyl-ate groups, and a distorted octa-hedral geometry defined by three water mol-ecules and three carboxyl-ate groups, in which two carboxyl-ate groups from the same side of the clip glycoluril ring and one water mol-ecule are bidentate bridging, whereas others are monodentate units. Every ligand mol-ecule connects four MBBs, thus forming a three-dimensional structure. Extensive intra- and inter-molecular O-H?O hydrogen bonding is observed.

| S-EPMC3238721 | biostudies-literature

Poly[aqua-(μ(3)-pyridazine-4-carboxyl-ato-κO:O:O')lithium].

Project description:The structure of the title compound, [Li(C(5)H(3)N(2)O(2))(H(2)O)](n), is composed of centrosymmetric dimers in which two Li(I) ions are bridged by a carboxyl-ate O atom, each donated by a ligand, acting in a bidentate mode. The second carboxyl-ato O atoms bridge the dimers to Li(I) ions in adjacent dimers, forming mol-ecular layers parallel to (001). Each Li(I) ion is coordinated by two bridging carboxyl-ate O atoms, a bridging carboxyl-ate O atom donated by the adjacent dimer and an aqua O atom, resulting in a distorted tetra-hedral coordination geometry. The layers are held together by O-H⋯N hydrogen bonds in which coordinated water O atoms act as donors and ligand hetero-ring N atoms as acceptors.

| S-EPMC3099971 | biostudies-literature

Poly[[triaqua-[μ(4)-N-(4-carboxyl-ato-phenyl)-iminodiacetato]sodium(I)zinc(II)] dihydrate].

Project description:In the title coordination polymer, {[NaZn(C(11)H(8)NO(6))(H(2)O)(3)]·2H(2)O}(n), the Zn atom is coordinated in a distorted tetra-hedral environment by three carboxyl-ate O atoms from two (4-carboxyl-atophenyl-imino)diacetate ligands and one water mol-ecule; the Na atom is in an distorted octa-hedral coordination environment formed by four carboxyl-ate O atoms from three (4-carboxyl-atophenyl-imino)diacetate ligands and two water mol-ecules. The Zn atoms and Na atoms are linked by (4-carboxyl-atophenyl-imino)diacetate ligands into a three-dimensional framework; the uncoordinated water mol-ecules fill the voids of the skeleton and stabilize it by O-H⋯O hydrogen bonds.

| S-EPMC2959866 | biostudies-literature

A one-dimensional zigzag coordination polymer: catena-poly[[[triaqua-cadmium(II)]-[μ-2,2'-(5-methyl-1,3-phenyl-enedi-oxy)diacetato-κO,O':O'',O''']] monohydrate].

Project description:In the title one-dimensional coordination polymer, {[Cd(C(11)H(10)O(6))(H(2)O)(3)]·H(2)O}(n), the 2,2'-(5-methyl-1,3-phenyl-enedi-oxy)diacetate dianions connect Cd(II) ions in a head-to-tail fashion to generate zigzag chains. The coordination geometry of the Cd atom is distorted penta-gonal bipyramidal. There are O-H⋯O hydrogen bonds between the carboxyl O atoms, the aqua ligands and the uncoordinated water mol-ecules.

| S-EPMC2960183 | biostudies-literature

catena-Poly[[diaquacobalt(II)]-bis(μ-3-carboxy-adamantane-1-carboxyl-ato-κO:O)].

Project description:In the title compound, [Co(C(12)H(15)O(4))(2)(H(2)O)(2)](n), adjacent Co(II) atoms ( symmetry) are bridged by 3-carboxy-adamantane-1-carboxyl-ate anions, forming a chain running along [001]. Inter-chain O-H⋯O hydrogen bonds link the chains into layers parallel to (100); the layers are further connected via inter-layer hydrogen bonds inter-actions, forming a three-dimensional framework.

| S-EPMC2968899 | biostudies-literature

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