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Catena-Poly[tris-(?(2)-1H-benzimidazole-5-carboxyl-ato)europium(III)].

ABSTRACT: In the title one-dimensional coordination polymer, [Eu(C(8)H(5)N(2)O(2))(3)](n), the Eu(III) ion is eight-coordinated by the carboxyl-ate O atoms of six ligands in a distorted monocapped penta-gonal-bipyramidal geometry. The ligands link Eu(III) ions, forming helical chains parallel to the c axis, with Eu?Eu separations of 4.0678?(11)?Å. The chains are further inter-connected by N-H?N hydrogen bonds into a three-dimensional supra-molecular network. The crystal studied was a racemic twin, as suggested by the Flack parameter of 0.367?(14).

SUBMITTER: Gao J

PROVIDER: S-EPMC3050161 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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catena-Poly[tris-(μ(2)-1H-benzimidazole-5-carboxyl-ato)europium(III)].

Gao Junlin J Wang Jun J Dai Chuntao C

Acta crystallographica. Section E, Structure reports online 20101215 Pt 1

In the title one-dimensional coordination polymer, [Eu(C(8)H(5)N(2)O(2))(3)](n), the Eu(III) ion is eight-coordinated by the carboxyl-ate O atoms of six ligands in a distorted monocapped penta-gonal-bipyramidal geometry. The ligands link Eu(III) ions, forming helical chains parallel to the c axis, with Eu⋯Eu separations of 4.0678 (11) Å. The chains are further inter-connected by N-H⋯N hydrogen bonds into a three-dimensional supra-molecular network. The crystal studied was a racemic twin, as sugg ...[more]

PMID: 21522593

Similar Datasets

Poly[diaqua-(?(5)-1H-imidazole-4,5-di-carboxyl-ato)(?(4)-1H-imidazole-4,5-di-carboxyl-ato)tris-ilver(I)ytterbium(III)].

Project description:The asymmetric unit of the title compound, [Ag(3)Yb(C(5)HN(2)O(4))(2)(H(2)O)(2)](n), contains three Ag(I) ions, one Yb(III) ion, two imidazole-4,5-dicarboxyl-ate ligands and two coordinating water mol-ecules. The Yb(III) atom is eight-coordinated, in a bicapped trigonal prismatic coordination geometry, by six O atoms from three imidazole-4,5-dicarboxyl-ate ligands and two coordinating water mol-ecules. The two-coordinated Ag(I) ions exhibit three types of coordination environments. One Ag(I) atom is bonded to two N atoms from two different imidazole-4,5-dicarboxyl-ate ligands. The other two Ag(I) atoms are each coordinated by one O atom and one N atom from two different imidazole-4,5-dicarboxyl-ate ligands. These metal coordination units are connected by bridging imidazole-4,5-dicarboxyl-ate ligands, generating a two-dimensional heterometallic layer. These layers are stacked along the a axis via O-H?O hydrogen-bonding inter-actions to generate a three-dimensional framework.

| S-EPMC3414133 | biostudies-literature

catena-Poly[[[triaqua-europium(III)]-?-(1H-benzimidazole-5,6-dicarboxyl-ato-?O:O)-?-(1H,3H-benzimidazol-3-ium-5,6-dicarboxyl-ato-?O:O,O)] dihydrate].

Project description:In the title one-dimensional coordination polymer, {[Eu(C(9)H(4)N(2)O(4))(C(9)H(5)N(2)O(4))(H(2)O)(3)]·2H(2)O}(n), one of the 1H-benzimidazole-5,6-dicarboxyl-ate (Hbdc) ligands is protonated at the imidazole group (H(2)bdc). The Eu(III) ion is eight-coordinated by two O atoms from two Hbdc ligands, three O atoms from two H(2)bdc ligands and three water mol-ecules, showing a distorted square-anti-prismatic geometry. The Eu(III) ions are bridged by the carboxyl-ate groups of the Hbdc and H(2)bdc ligands, forming a chain along [110], with an Eu?Eu separation of 5.4594?(3)?Å. These chains are further connected by inter-molecular O-H?O, N-H?O and N-H?N hydrogen bonds, as well as ?-? inter-actions between the imidazole and benzene rings [centroid-centroid distances = 3.558?(3), 3.906?(2), 3.397?(3), 3.796?(2) and 3.898?(2)?Å], into a three-dimensional supra-molecular network.

| S-EPMC3200846 | biostudies-other

catena-Poly[[diaqua-dibromidoman-ganese(III)]-?-pyridine-2-carboxyl-ato].

Project description:The asymmetric unit of the title compound, [MnBr(2)(C(6)H(4)NO(2))(H(2)O)(2)](n), contains one monomeric unit of the neutral linear coordination polymer. The Mn(3+) ions are bridged by anionic pyridine-2-carboxyl-ate (pic) ligands, thereby forming a chain-like structure along the c axis, and are six-coordinated in a distorted octa-hedral environment by two O atoms of the two different carboxyl-ate groups, two O atoms of two water mol-ecules and two Br atoms. The complex displays inter-molecular O-H?Br, O-H?N, O-H?O, C-H?O and C-H?Br hydrogen bonding. There may also be inter-molecular ?-? inter-actions between adjacent pyridine rings, with a centroid-centroid distance of 3.993?(8)?Å.

| S-EPMC2977438 | biostudies-literature

catena-Poly[diaqua-tris(?(3)-biphenyl-2,2-dicarboxyl-ato)disamarium(III)].

Project description:The title compound, [Sm(2)(C(14)H(8)O(4))(3)(H(2)O)(2)](n), is composed of one-dimensional chains and is isostructural with previously reported compounds [Wang et al. (2003 ?). Eur. J. Inorg. Chem. pp. 1355-1360]. The asymmetric unit contains two Sm atoms, each of which lies on a crystallographic twofold axis. Both crystallographically independent Sm atoms are coordinated by eight O atoms in a distorted dodeca-hedral arrangement. The polymeric chains run along [001]. Adjacent chains are connected through ?-? inter-actions [centroid-centroid distance = 3.450?(2)?Å], forming a two-dimensional supra-molecular network.

| S-EPMC2972101 | biostudies-literature

catena-Poly[[bis-(1H-benzimidazole-κN)palladium(II)]-μ-benzene-1,4-dicarboxyl-ato-κO:O].

Project description:In the title compound, [Pd(C(8)H(4)O(4))(C(7)H(6)N(2))(2)](n), the Pd atom is tetra-coordinated by two carboxyl-ate O atoms from two benzene-1,4-dicarboxyl-ate (bdc) dianions and two N atoms from two benzimidazole ligands, resulting in a slightly distorted tetra-hedral PdO(2)N(2) geometry. The bdc ligand acts as a bridge, linking the Pd atoms into a chain. Inter-chain N-H⋯O hydrogen bonds help to stabilize the crystal structure.

| S-EPMC2915081 | biostudies-literature

catena-Poly[[diaqua-(1,10-phenanthroline-?N,N')nickel(II)]-?-1H-benzimidazole-5,6-dicarboxyl-ato-?N:O].

Project description:In the title complex, [Ni(C(9)H(4)N(2)O(4))(C(12)H(8)N(2))(H(2)O)(2)](n), the Ni(II) atom is hexa-coordinated by one N and one O atom from two different 1H-benzimidazole-5,6-dicarboxyl-ate ligands, two N atoms from one 1,10-phenanthroline ligand and two water mol-ecules. The flexible 1H-benzimidazole-5,6-dicarboxyl-ate ligands link the Ni(II) centres, forming an infinite zigzag chain parallel to [001]. The crystal packing is governed by inter-molecular hydrogen-bonding inter-actions of the O-H?O, N-H?O and C-H?O types.

| S-EPMC2969534 | biostudies-literature

Poly[[tetra-aqua-tris-(?(3)-hexane-1,6-di-carboxyl-ato)diterbium(III)] 0.25-hydrate].

Project description:In the title terbium coordination polymer, {[Tb(2)(C(6)H(8)O(4))(3)(H(2)O)(4)]·0.25H(2)O}(n), the Tb(III) atom is nine-coordinated, forming a TbO(9) polyhedra. Furthermore, two symmetric TbO(9) polyhedra share their edges, forming Tb(2)O(16) dimers, which are linked by adipate bridges into a layered structure. Inter-molecular O-H?O hydrogen bonds link these layers into a three-dimensional network. One of the C atoms of the adipate ligand is disordered over two positions with site-occupancy factors of 0.622?(9) and 0.378?(9). The structure also contains a disordered mol-ecule of water of hydration, lying close to a special position, with partial occupancy.

| S-EPMC3099756 | biostudies-literature

Poly[(?-1H-benzimidazole-5,6-dicarboxyl-ato)lead(II)].

Project description:The crystal structure of the two-dimensional polymeric title compound, [Pb(C(9)H(4)N(2)O(4))](n), comprises one crystallo-graphic-ally independent Pb(II) atom and one fully deprotonated 1H-benzimidazole-5,6-dicarboxyl-ate (H(2)L) ligand. The Pb(II) atom is seven-coordinated by six O atoms and one N atom from the H(2)L ligands, giving a capped octa-hedral coordination geometry. The structure is a layered two-dimensional coordination polymer extending parallel to (100) with N-H?O hydrogen bonds inter-actions between the layers, stabilizing the crystal structure.

| S-EPMC3120506 | biostudies-literature

catena-Poly[[[diaqua-(1,3-benzimidazole-κN)manganese(II)]-μ-benzene-1,3-di-carboxyl-ato-κO,O:O] dihydrate].

Project description:In the polymeric title complex, {[Mn(C(8)H(4)O(4))(C(7)H(6)N(2))(H(2)O)(2)]·2H(2)O}(n), the Mn(II) cation is coordinated by two benzene-dicarboxyl-ate anions, one benzimidazole ligand and two water mol-ecules in a distorted MnNO(5) octa-hedral geometry. In the crystal, each benzene-dicarboxyl-ate anion bridges adjacent Mn(II) cations through the terminal carboxyl-ate groups, forming a polymeric complex chain along the a axis. One Mn-O(carboxyl-ate) bond is much longer than the others. In the crystal, π-π stacking is observed between nearly parallel [dihedral angle = 4.32 (6)°] benzimidazole aromatic ring systems of adjacent mol-ecules, the centroid-centroid distance between the imidazole and benzene rings being 3.5421 (11) Å. Extensive inter-molecular O-H⋯O and N-H⋯O hydrogen bonding is present in the crystal structure. The two lattice water mol-ecules are located on twofold rotation axes.

| S-EPMC3099958 | biostudies-literature

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.

| S-EPMC3201418 | biostudies-literature

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