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Poly[[diaqua-bis(μ(3)-maleato-κO:O,O:O)dicopper(II)] trihydrate].

ABSTRACT: In the title compound, {[Cu(2)(C(4)H(2)O(4))(2)(H(2)O)(2)]·3H(2)O}(n), Cu(II) ions with square-pyramidal coordination are bridged by exo-tri-dentate maleate dianions into [Cu(2)(maleate)(2)(H(2)O)(2)](n) layers coincident with the bc crystal plane. The inter-lamellar regions contain hydrogen-bonded cyclic water hexa-mers which facilitate layer stacking into a pseudo-three-dimensional crystal structure. The water hexamers themselves are formed by the operation of crystallographic inversion centers on sets of three crystallographically distinct water molecules of hydration.

SUBMITTER: Farnum GA

PROVIDER: S-EPMC2961984 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Poly[[diaqua-μ(2)-hydroxido-(μ(7)-2-phos-pho-nato-ethane-sulfonato)-dicopper(II)] trihydrate].

Project description:The crystal structure of the title compound, [Cu(2)(C(2)H(4)O(6)PS)(OH)(H(2)O)(2)]·3H(2)O, consists of two Cu(2+) ions, one (O(3)PC(2)H(4)SO(3))(3-) ion and one OH(-) ion, as well as five water mol-ecules, two of which are coordinated to Cu(2+). The Cu(2+) ions are coordinated by six O atoms. The CuO(6) polyhedra are connected by μ- and μ(3)-O atoms into zigzag chains along the b axis. These chains are further connected by -CH(2)CH(2)- groups to form layers, in turn building a three-dimensional framework via hydrogen bonding.

| S-EPMC2959580 | biostudies-literature

catena-Poly[[diaqua-bis-(isoquinoline-κN)cobalt(II)]-μ-succinato-κO:O].

Project description:In the title compound, [Co(C(4)H(4)O(4))(C(9)H(7)N)(2)(H(2)O)(2)](n), the Co(II) cation, located on an inversion center, is coordinated by two succinate anions, two isoquinoline ligands and two water mol-ecules in a distorted octa-hedral geometry. The succinate anion, located across another inversion center, bridges the Co cations, forming polymeric chains running along the b axis. The partially overlapped arrangement of parallel isoquinoline ring systems of adjacent polymeric chains and the shorter face-to-face distance of 3.402 (6) Å indicates the existence of weak π-π stacking in the crystal structure. Classical intra- and inter-molecular O-H⋯O hydrogen bonding and weak non-classical inter-molecular C-H⋯O hydrogen bonding help to stabilize the crystal structure.

| S-EPMC3006983 | biostudies-literature

catena-Poly[[diaqua-magnesium(II)]-bis-(μ-5-ammonio-isophthalato-κO:O)].

Project description:In the title compound, [Mg(C(8)H(6)NO(4))(2)(H(2)O)(2)](n), the Mg(II) ion lies on a twofold roatation axis and is coordinated in a slightly distorted octa-hedral environment. Pairs of bridging ammonium-isophthalate ligands connect symmetry-related Mg(II) ions, forming chains along [010]. In the crystal, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link these chains into a three-dimensional network. The centroids of pairs of symmetry-related benzene rings within a chain are separated by 3.5707 (12) Å.

| S-EPMC3009009 | biostudies-literature

catena-Poly[[diaqua-cobalt(II)]-bis-(μ-4-fluoro-benzoato-κO:O')].

Project description:The hydro-thermal reaction of CoCO(3) and 4-fluoro-benzoic acid afforded the title Co(II) complex, [Co(C(7)H(4)FO(2))(2)(H(2)O)(2)](n). The Co(II) atom is located on an inversion center and is coordinated by six O atoms from two water mol-ecules and four μ(2)-carboxyl-ate groups of 4-fluoro-benzoate anions, forming a distorted CoO(6) octa-hedron, with Co-O bond lengths in the range 2.071 (2)-2.130 (2) Å. All adjacent O-Co-O angles are in the range 84.78 (6)-95.22 (6)° and opposite angles are 180.0°. Each μ-carboxyl-ate group of the 4-fluoro-benzoate anions bridges two symmetry-related Co(II) atoms. Hydrogen-bonding inter-actions of the coordinated water mol-ecules further connect the cobalt-carboxyl-ate units, forming layers perpendicular to the a axis. The cobalt-oxygen layers are encased in a sandwich-like fashion by layers of π-stacked 4-fluoro-benzoate anions. Within these layers the benzene rings of the 4-fluoro-benzoate anions are π-stacked, with centroid-centroid distances of 3.432 (4) Å.

| S-EPMC2977626 | biostudies-literature

Poly[diaqua-bis(μ-azido-κN:N)bis-(μ(3)-1-oxoisonicotinato-κO:O':O'')dicadmium(II)].

Project description:In the title compound, [Cd(2)(C(6)H(4)NO(3))(2)(N(3))(2)(H(2)O)(2)](n), one Cd(II) atom is located on an inversion center and is coordinated by four O atoms from four bridging 1-oxoisonicotinate ligands and two N atoms of two bridging azide ligands in a slightly distorted octa-hedral geometry. The other Cd(II) atom, also lying on an inversion center, is coordinated by four O atoms from two bridging 1-oxoisonicotinate ligands and two water mol-ecules and two N atoms of two bridging azide ligands in a slightly distorted octa-hedral geometry. The Cd atoms are connected via the 1-oxoisonicotinate and azide ligands into a two-dimensional coordination network. The crystal structure involves O-H⋯N and O-H⋯O hydrogen bonds.

| S-EPMC2961384 | biostudies-literature

catena-Poly[[[tetra-kis(μ-2-butenoato)dicopper(II)]-μ-2-butenoato-[diaqua-(2-butenoato)holmium(III)]-di-μ-2-butenoato-[diaqua-(2-butenoato)holmium(III)]-μ-2-butenoato] trihydrate].

Project description:The title compound {[Cu(2)Ho(2)(C(4)H(5)O(2))(10)(H(2)O)(4)]·3H(2)O}(n), is a one-dimensional 3d/4f organic-inorganic hybrid complex, the Ho(III) member of the isotypic lanthanoid series with Ln = Gd(III), Er(III) and Y(III). The structure shows an alternation of Cu(2) and Ho(2) dinuclear units bridged by the ligands and hydrogen bonds only. The chains are composed of Cu(2) classical dinuclear η(1):η(1):μ(2) fourfold bridges [Cu⋯Cu = 2.6417 (9) Å] and of Ho(2) units bridged by two η(2):η(1):μ(2) carboxyl-ate units. This results in distorted square-based pyramidal CuO(5) units and irregular HoO(9) units. The alternating Cu(2) and Ho(2) units are bridged into linear arrays along the a axis by a set of one η(2):η(1):μ(2) carboxyl-ate O atom and two hydrogen bonds with Cu⋯Ho separations of 4.4883 (10) and 4.5086 (10) Å. The distance between adjacent chains, as calculated by the closest and furthest distances between two chains, covers the range 10-14 Å. The H atoms of the water mol-ecules could not be located, but the O⋯O separations for these species suggest the presence of O-H⋯O hydrogen bonds.

| S-EPMC2959781 | biostudies-literature

catena-Poly[[[bis-(4-amino-benzoato-κO)copper(II)]-μ-1,1'-(pentane-1,5-di-yl)diimidazole] trihydrate].

Project description:In the title compound, {[Cu(C(7)H(6)NO(2))(2)(C(11)H(16)N(4))]·3H(2)O}(n), each Cu(II) atom is coordinated by two O atoms from two 4-amino-benzoate anions, and two N atoms from two different 1,1'-(pentane-1,5-di-yl)diimidazole (biim-5) ligands, to furnish a distorted square-planar geometry. The biim-5 ligand coordinates to two copper(II) cations, acting as a bridging ligand; as a result the copper(II) cations are connected to form an infinite chain structure. The polymeric chains are linked through a variety of hydrogen bonds to form a three-dimensional structure.

| S-EPMC2915095 | biostudies-literature

catena-Poly[[tetra-kis(μ(2)-acetato-κO:O')dicopper(II)(Cu-Cu)]-μ(2)-acetato-κO:O'-[bis-[μ(2)-3-(dimethyl-amino)propan-1-olato]-κN,O:O;κO:N,O-bis-[(tetra-hydro-furan-κO)copper(II)]]-μ(2)-acetato-κO:O'].

Project description:The title complex, [Cu(4)(C(5)H(12)NO)(2)(C(2)H(3)O(2))(6)(C(4)H(8)O)(2)](n), consists of dinuclear [Cu(2)(C(5)H(12)NO)(2)(THF)(2)] (THF is tetra-hydro-furan) and [Cu(2)(CH(3)COO)(4)] units linked through acetate ions, generating parallel one-dimensional polymeric chains propagating in the [10] direction. In the first dinuclear unit, Cu(II) ions related by inversion symmetry are bridged by two 3-(dimethyl-amino)propan-1-olate ligands. Likewise, a pair of inversion-related Cu(II) ions are bridged by four acetate groups. The crystallographically independent Cu centers are linked to one another by a single bridging acetate group, generating an infinite chain. The distorted square-pyramidal coordination of the first metal center is completed with an apical THF mol-ecule, with a long Cu-O bond length of 2.476 (5) Å. The geometry around the other metal atom is close to octa-hedral, and the Cu⋯Cu separation in this unit is 2.652 (1) Å. The distance between the metal centers in the first dinuclear unit is considerably longer [3.068 (1) Å], suggesting little or no bonding inter-action. The Cu⋯Cu separation between two acetate-bridged independent Cu centers is 4.860 (2) Å. The THF mol-ecule has methyl-ene groups disordered over two positions, with occupancies of 0.608 (13) and 0.392 (13).

| S-EPMC2960524 | biostudies-literature

Poly[diaqua-bis-(μ-4,4'-bipyridine-κ(2) N:N')bis-(ethane-1,2-diol-κO)bis(μ-sulfato-κ(2) O:O')dicobalt(II)].

Project description:In the title compound, [Co2(SO4)2(C10H8N2)2(C2H6O2)2(H2O)2] n , there are two crystallographically independent Co(II) ions, each of which lies on a twofold rotation axis and has a slightly distorted octa-hedral environment. One Co(II) ion is coordinated by two N atoms from two bridging 4,4'-bipyridine (4,4'-bipy) ligands, two O atoms from two sulfate ions and two O atoms from aqua ligands. The second Co(II) ion is similar but with ethane-1,2-diol ligands in place of water mol-ecules. The sulfate anions act as bridging ligands to link two adjacent Co(II) ions together, leading to the formation of linear ⋯Co1Co2Co1Co2⋯chains along the a axis. Adjacent chains are further bridged by 4,4'-bipy ligands, which are also located on the twofold rotation axis, resulting in a two-dimensional layered polymer extending parallel to (001). In the crystal, the layers are linked by extensive O-H⋯O hydrogen-bonding inter-actions involving the O atoms of the water mol-ecules and ethane-1,2-diol mol-ecules, resulting in a three-dimensional supra-molecular network.

| S-EPMC3629485 | biostudies-literature

Poly[[μ-1,3-bis-(pyridin-3-yl)urea]bis-(μ<sub>4</sub>-glutarato)dicopper(II)].

Project description:The title compound, [Cu2(C5H6O4)2(C11H10N4O)]n, contains square-pyramidally coordinated CuII ions linked by anti-gauche conformation glutarate (glu) ligands into [Cu2(glu)2]n di-periodic coordination polymer layers with embedded [Cu2(OCO)4] paddlewheel clusters. In turn, the layer motifs are connected by 1,3-di(pyridin-3-yl)urea (3-dpu) linkers to form a [Cu2(glu)2(3-dpu)]n tri-periodic coordination polymer network. Treating the [Cu2(OCO)4] clusters as 6-connected nodes reveals an underlying 41263 pcu topology according to TOPOSPRO software [Blatov et al. (2014 ▸). Cryst. Growth Des. 14, 3576-3586].

| S-EPMC10561227 | biostudies-literature

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