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Catena-Poly[[aqua-copper(II)]-μ(2)-imino-diacetato-κO,N,O':O'].

ABSTRACT: In the title compound, [Cu(C(4)H(5)O(4))(H(2)O)](n), the imino-diacetate (ida) ligands link the Cu(II) atoms into polymeric zigzag chains running along [010]. Each Cu(II) ion is five-coordinated in a distorted square-pyramidal geometry by one N and two O atoms from an ida ligand, one O atom from the neighbouring ida ligand and one water O atom. In the crystal, the polymeric chains are held together via inter-molecular O-H⋯O and N-H⋯O hydrogen bonds.

SUBMITTER: Zhong Q

PROVIDER: S-EPMC3246954 | biostudies-literature |

REPOSITORIES: biostudies-literature

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catena-Poly[[aqua-dipyridine-copper(II)]-μ-fumarato].

Project description:The title compound, [Cu(C(4)H(2)O(4))(C(5)H(5)N)(2)(H(2)O)](n), is a one-dimensional coordination polymer based on pyridine and fumarate ligands. Each Cu(II) cation is coordinated by two carboxyl-ate O atoms belonging to two fumarate anions, two N atoms from two pyridine mol-ecules and one water mol-ecule, in a square-based pyramidal geometry. Each fumarate anion bridges two Cu(II) cations through the two carboxyl-ate groups in a bis-monodentate fashion to form a one-dimensional polymeric chain along the c axis. Neighbouring chains are linked together to form a two-dimensional network parallel to the ac plane via hydrogen bonding inter-actions between uncoordinated carboxyl-ate O atoms and coordinated water mol-ecules of adjecent chains.

| S-EPMC2914965 | biostudies-literature

catena-Poly[[aqua-(2,2'-bipyridine-κN,N')copper(II)]-μ-5-nitro-isophthalato-κO,O:O].

Project description:In the asymmetric unit of the title compound, [Cu(C(8)H(3)NO(6))(C(10)H(8)N(2))(H(2)O)](n), there are two symmetry-independent one-dimensional coordination polymers related by a non-crystallographic inversion center. Within the polymers, the Cu(II )atoms, coordinated by the water mol-ecule and the chelating 2,2'-bipyridine ligands, are bridged by 5-nitro-benzene-1,3-dicarboxyl-ate dianions which act as tridentate ligands; the carboxyl-ate groups exhibit monodentate and symmetric bidentate coordination modes. The Cu(II) atoms show a strongly distorted octa-hedral coordination geometry. In the crystal structure, the two symmetry-independent coordination polymers form another one-dimensional polymeric structure via O-H⋯O hydrogen bonds between coordinated water mol-ecules and carboxyl-ate groups.

| S-EPMC2959803 | biostudies-literature

Aqua[N-(2,5-dihydroxybenzyl)imino-diacetato]copper(II).

Project description:The title complex, [Cu(C(11)H(11)NO(6))(H(2)O)], contains a Cu(II) atom in a distorted square-pyramidal geometry. The metal centre is coordinated in the basal sites by one water mol-ecule and two carboxyl-ate O atoms and one N atom of the tetra-dentate ligand [Cu-O range, 1.9376?(11)-1.9541?(12), Cu-N, 1.9929?(12)?Å] while the apical site is occupied by a hydro-quinone O donor atom [Cu-O, 2.3746?(12)?Å]. Inter-molecular hydrogen bonding inter-actions involving both hydro-quinone hydr-oxy groups and the coordinated water as donors give a three-dimensional framework structure.

| S-EPMC2971235 | biostudies-literature

Aqua-(imino-diacetato-κO,N,O')(1,10-phenanthroline-κN,N')zinc(II) sesquihydrate.

Project description:The imino-diacetate dianion in the title compound, [Zn(C(4)H(5)NO(4))(C(12)H(8)N(2))(H(2)O)]·1.5H(2)O, chelates to the Zn(II) center with its N and two O atoms. The metal atom is also chelated by the N-heterocycle and coordinated by one water molecule, leading to a distorted octahedral environment. The dianion, and coordinated and uncoordinated water mol-ecules inter-act through O-H⋯O hydrogen bonds, generating a three-dimensional network. One of the two uncoordinated water mol-ecules has half-site occupancy. The crystal studied was a non-merohedral twin with a 15% twin component.

| S-EPMC2967921 | biostudies-literature

catena-Poly[[aqua-bis-(pyridine-?N)copper(II)]-?-2,2'-(p-phenyl-enedi-oxy)diacetato-?O:O'].

Project description:In the title compound, [Cu(C(10)H(8)O(6))(C(5)H(5)N)(2)(H(2)O)](n), the Cu atom is five-coordinated by two O atoms from two carboxyl-ate groups of two different 2,2'-(p-phenyl-enedi-oxy)diacetate ligands, two N atoms from two pyridine mol-ecules and one water O atom. The geometry is square-pyramidal with the water O atom occupying the apical position. The carboxyl-ate group bridges adjacent Cu atoms, forming an infinite zigzag chain extending parallel to [001]. The chains are linked into layers by O-H?O hydrogen bonds. The Cu and water O atoms lie on special positions of site symmetry 2.

| S-EPMC2983391 | biostudies-literature

catena-Poly[[[tetra-aqua-samarium(III)]-di-μ-isonicotinato-κO:O'] chloride].

Project description:In the structure of the title compound, {[Sm(C(6)H(4)NO(2))(2)(H(2)O)(4)]Cl}(n), the unique Sm(III) atom lies on a crystallographic twofold axis and is eight-coordinated by four O atoms from four isonicotinate ligands and four water mol-ecules in a slightly distorted square-anti-prismatic coodination environment. The Sm(III) atoms are bridged by two carboxyl-ate groups of two isonicotinate ligands, forming an extended chain along the c-axis direction. These chains are cross-linked through hydrogen bonds, forming a three-dimensional framework, with channels which accommodate the chloride anions.

| S-EPMC2914939 | biostudies-literature

Crystal structure of catena-poly[[[di-aqua-bis-(2,4,6-tri-methyl-benzoato-κO)cobalt(II)]-μ-aqua-κ2O:O] dihydrate].

Project description:The asymmetric unit of the title one-dimensional polymeric compound, {[Co(C10H11O2)2(H2O)3]·2H2O} n , contains one CoII cation situated on a centre of inversion, one-half of a coordinating water mol-ecule, one 2,4,6-tri-methyl-benzoate (TMB) anion together with one coordinating and one non-coordinating water mol-ecule; the TMB anion acts as a monodentate ligand. In the anion, the carboxyl-ate group is twisted away from the attached benzene ring by 84.9 (2)°. The CoII atom is coordinated by two TMB anions and two water mol-ecules in the basal plane, while another water mol-ecule bridges the CoII atoms in the axial directions, forming polymeric chains running along [001]. The coordination environment for the CoII cation is a slightly distorted octa-hedron. The coordinating and bridging water mol-ecules link to the carboxyl-ate groups via intra- and inter-molecular O-H⋯O hydrogen bonds, enclosing S(6) ring motifs, while the coordinating, bridging and non-coordinating water mol-ecules link to the carboxyl-ate groups and the coordinating water mol-ecules link to the non-coordinating water mol-ecules via O-H⋯O hydrogen bonds, enclosing R22(8) and R33(8) ring motifs. Weak C-H⋯O and C-H⋯π inter-actions may further stabilize the crystal structure.

| S-EPMC5418789 | biostudies-literature

catena-Poly[[[tetra-kis-(4-methyl-pyridine-κN)copper(II)]-μ-sulfato-κO:O'] 4.393-hydrate].

Project description:The structure of the title compound, {[Cu(SO(4))(C(6)H(7)N)(4)]·4.393H(2)O}(n), consists of Cu(2+) ions surrounded in a square-planar fashion by 4-methyl-pyridine ligands, forming two crystallographically independent Cu{H(3)C(C(5)H(4)N)}(4) units that are both located on crystallographic inversion centers. The Cu(4-methyl-pyridine)(4) units are, in turn, connected with each other via bridging sulfate anions, leading to the formation of infinite [Cu{H(3)C(C(5)H(4)N)}(4)SO(4)](n) zigzag chains along [001]. The completed coordination spheres of the Cu(2+) ions are slightly distorted octa-hedral. The axial Cu-O bonds are elongated [average length = 2.42 (4) Å] compared to the equatorial Cu-N bonds [average length = 2.043 (2) Å]. The inter-stitial space between the chains is filled with uncoordinated water mol-ecules that consolidate the structure through O-H⋯O hydrogen bonding. One of the five crystallographically independent solvent water mol-ecules is partially occupied with an occupancy factor of 0.396 (4). Due to hydrogen bonding between symmetry-equivalent water mol-ecules across inversion centers, several of the water H atoms are disordered in 1:1 ratios over mutually exclusive positions. The crystal under investigation was found to be non-merohedrally twinned in a 0.789 (1):0.211 (1) ratio by a 180° rotation around the reciprocal b axis.

| S-EPMC3051987 | biostudies-literature

catena-Poly[[bis-(1-ethyl-1H-imidazole-κN)copper(II)]-μ-oxalato-κO,O:O,O].

Project description:The title compound, [Cu(C(2)O(4))(C(5)H(8)N(2))(2)](n), is composed of one-dimensional linear chains running parallel to the a axis. In the chain, trans-[Cu(imidazole)(2)](2+) units are sequentially bridged by bis-bidentate oxalate ligands, resulting in an octa-hedral CuO(4)N(2) donor set. The Cu⋯Cu separation through the oxalate bridge is 5.620 (5) Å. Both the Cu atoms and the C-C bond of the oxalate bridge are bis-ected by inversion centres.

| S-EPMC3246998 | biostudies-literature

catena-Poly[[(4-methyl-benzoato-κO)manganese(II)]-μ-aqua-bis-(μ-4-methyl-benzoato-κO:O')[(4-methyl-benzoato-κO)manganese(II)]-bis-(μ-N,N-diethyl-nicotinamide)-κN:O;O:N].

Project description:The asymmetric unit of the title complex, [Mn(2)(C(8)H(7)O(2))(4)(C(10)H(14)N(2)O)(2)(H(2)O)](n), contains two crystallographically independent units. In each one, the Mn(II) ions are bridged by two 4-methyl-benzoate (PMB) ligands and one water mol-ecule. In the crystal structure, each Mn(II) ion is coordinated by three PMB ligands, one water mol-ecule and two symmetry-related N,N-diethyl-nicotinamide (DENA) ligands. Symmetry-related Mn(II) ions are bridged by the N and O atoms of symmetry-related DENA ligands, forming polymeric chains parallel to [100]. The coord-ination environmnts for the Mn(II) ions are slightly distorted octa-hedral. Intra-molecular O-H⋯O hydrogen bonds link bridging water mol-ecules to the carboxyl-ate O atoms of a neigh-boring polymeric chain. In the crystal structure, π-π contacts between benzene rings [centroid-centroid distance = 3.562 (1) Å] and weak C-H⋯π inter-actions are also observed.

| S-EPMC3006929 | biostudies-literature

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