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Poly[μ(3)-β-alanine-aqua-μ(4)-sulfato-dilithium].

ABSTRACT: The title compound, [Li(2)(SO(4))(C(3)H(7)NO(2))(H(2)O)](n), is a coordination polymer in which the β-alanine residues remain in the zwitterionic form. The crystal structure consists of corrugated sheets of [LiO(4)] and [SO(4)] tetra-hedra parallel to (010) with the β-alanine mol-ecules located between the sheets. The two independent Li(+) cations are four-coordinated by O atoms in a distorted tetra-hedral geometry. The crystal structure is formed by stacking of alternate organic and inorganic layers along the a axis. The crystal structure is further stabilized by N-H⋯O hydrogen bonds.

SUBMITTER: Sweetlin MD

PROVIDER: S-EPMC3274924 | biostudies-literature |

REPOSITORIES: biostudies-literature

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catena-Poly[[[aqua-manganese(II)]-di-μ-sulfato-[aqua-manganese(II)]-μ-N,N,N',N'-tetra-kis(2-pyridylmeth-yl)hexane-1,6-diamine] hexa-hydrate].

Project description:In the polymeric title compound, {[Mn(2)(SO(4))(2)(C(30)H(36)N(6))(H(2)O)(2)]·6H(2)O}(n), the two Mn(2+) ions are bridged by two sulfate anions to form dinuclear complexes, and these dinuclear species are linked by the hexa-dentate ligand N,N,N',N'-tetra-kis(2-pyridylmeth-yl)hexane-1,6-diamine (tphn), forming a one-dimensional chain structure running in the [101] direction. The repeat unit of the polymer, Mn(2)(SO(4))(2)(H(2)O)(2)(tphn), is disposed about a twofold axis passing through the centre of the dinuclear unit. The coordination geometry around the Mn centre is distorted octa-hedral. Two methylene groups are each disordered equally over two positions.

| S-EPMC2914929 | biostudies-literature

Poly[di-?-aqua-?(4)-(pyrazine-2,5-dicarboxyl-ato)-dilithium(I)].

Project description:In the title coordination polymer, [Li(2)(C(6)H(2)N(2)O(2))(H(2)O)(2)](n) the pyrazine-2,5-dicarboxyl-ate dianionic ligand bridges two symmetry-independent Li(+) ions using both its N,O-chelating sites. The carboxyl-ate O atom of one of them also bridges to another Li(+) ion, while the second O atom of this group is bonded to another Li(+) ion. Two symmetry-independent water O atoms participate also in the bridging system, which gives rise to a polymeric three-dimensional framework. Both Li(+) ions show distorted trigonal-bipyramidal LiNO(4) coordination geometries, with the N atom in an axial site in both cases. The packing is consolidated by O-H?O hydrogen bonds, which occur between water mol-ecules as donors and carboxyl-ate O atoms as acceptors.

| S-EPMC3050281 | biostudies-literature

Poly[hexa-aqua-copper(II) [di-?(3)-sulfato-disodiate(I)]].

Project description:The title compound, {[Cu(H(2)O)(6)][Na(2)(SO(4))(2)]}(n), has been prepared under mild hydro-thermal conditions and has been structurally characterized. It exhibits a structure in which the inorganic frameworks are three-dimensional, participating in extensive hydrogen bonding. Copper occupies a special position (). The Na atom is coordinated by five O atoms of four sulfates [Na-O distances are between 2.825?(3) and 2.983?(3)?Å]. The four O atoms of the sulfate ligand are coordinated to four Na atoms, the sulfate ligands coordinating in a chelating/bridging tetra-dentate mode.

| S-EPMC2960320 | biostudies-literature

catena-Poly[bis-(propane-1,3-diaminium) [[aqua-(sulfato-?O)bis-(sulfato-?O,O')cerate(IV)]-?-sulfato-?O,O':O''] dihydrate].

Project description:The Ce(IV) atom in the title salt, {(H(3)NCH(2)CH(2)CH(2)NH(3))(2)[Ce(SO(4))(4)(H(2)O)]·2H(2)O}(n), exists in a monocapped square-anti-prismatic coordination geometry. The water-coordinated metal atom is bonded to four sulfate ions; one of them is monodentate and two function in a chelating mode. The fourth is also chelating but it uses one of the other two O atoms to bind to an adjacent metal atom, generating a polyanionic chain. The cations are linked to the polyanionic chain as well as to the uncoordinated water mol-ecules, resulting in an O-H?O and N-H?O hydrogen-bonded three-dimensional network.

| S-EPMC3099775 | 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

Poly[[(μ-2,2'-bipyrimidine-κN,N:N,N)(μ-sulfato-κO:O')zinc(II)] monohydrate].

Project description:In the title compound, {[Zn(SO(4))(C(8)H(6)N(4))]·H(2)O}(n), the Zn(II) atom is in a distorted octa-hedral environment. The Zn(II) atoms are bridged by both 2,2'-bipyrimidine and sulfate ligands, thus forming a three-dimensional polymeric metal-organic solid that contains uncoordinated water mol-ecules in the inter-stitial space. O-H⋯O hydrogen bonding consolidates the crystal structure.

| S-EPMC2979934 | biostudies-literature

Poly[[μ-1,4-anhydro-erythritolato-di-μ-aqua-sodium(I)] monohydrate].

Project description:In the title compound, {[Na(C(4)H(7)O(3))(H(2)O)(2)]·H(2)O}(n), the sodium ion is octa-hedrally coordinated by two bridging 1,4-anhydro-erythritolate ligands, unexpectedly coordinated by the ring oxygen and four water ligands. This bonding pattern leads to one-dimensional anti-tactical polymeric chains along [010]. One of the exocyclic O atoms of the anhydro-erythritolate group is an acceptor in four hydrogen bonds, giving further evidence that it is deprotonated.

| S-EPMC2959930 | biostudies-literature

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

Poly[octa-μ-aqua-tetra-aqua-bis(μ(4)-5-sulfonatobenzene-1,3-dicarboxyl-ato)nickel(II)tetra-sodium].

Project description:In the crystal structure of the title compound, [Na(4)Ni(C(8)H(3)O(7)S)(2)(H(2)O)(12)](n), the Ni(II) cation occupies an inversion centre and is coordinated by the carboxyl groups of the sulfoisophthalate trianions and water mol-ecules in a distorted octa-hedral geometry. Two independent Na(I) atoms are connected by the carboxyl and sulfonate groups of the sulfoisophthalate ligands anions and water mol-ecules in a distorted octa-hedral geometry. The sulfoisophthalate ligands and coordinated water mol-ecules bridge the Ni(II) and Na(I) cations, forming a three-dimensional polymeric structure. Weak π-π stacking is present between parallel benzene rings [centroid-centroid distance = 3.9349 (10) Å]. Extensive O-H⋯O and C-H⋯O hydrogen bonding helps to stabilize the crystal structure.

| S-EPMC2969070 | biostudies-literature

Poly[?-aqua-diaqua-(?(2)-pyrazine-2,3-dicarboxyl-ato)dilithium(I)].

Project description:The asymmetric unit of the title compound, [Li(2)(C(6)H(2)N(2)O(4))(H(2)O)(3)](n), consists of two independent Li(+) cations, one pyrazine-2,3-dicarboxyl-ate dianion and three water mol-ecules. One of the Li(+) cations has a distorted tetra-hedral geometry, coordinated by one of the carboxyl-ate O atoms of the pyrazine-2,3-dicarboxyl-ate ligand and three O atoms from three water mol-ecules, whereas the other Li(+) cation has a distorted trigonal-bipyramidal geometry, coordinated by a carboxyl-ate O atom of a symmetry-related pyrazine-2,3-dicarboxyl-ate ligand, two water mol-ecules and a chelating pyrazine-2,3-dicarboxyl-ate ligand (by utilizing both N and O atoms) of an adjacent mol-ecule. The synthesis of a hydrated polymeric dinuclear lithium complex formed with two pyrazine-2,3-dicarboxylic acid ligands has been reported previously [Tombul et al. (2008a ?). Acta Cryst. E64, m491-m492]. By comparision to the complex reported here, the dinuclear complex formed with two pyrazine-2,3-dicarboxylic acid ligands differs in the coordination geometry of both Li atoms. The crystal structure further features O-H?O and O-H?N hydrogen-bonding inter-actions involving the water mol-ecules and carboxyl-ate O atoms.

| S-EPMC2971803 | biostudies-other

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