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Catena-Poly[bis-(μ-4-methyl-benzoato-κO:O')hepta-kis(μ-4-methyl-benzoato-κO,O':O)tris-amarium(III)].

ABSTRACT: The title samarium coordination polymer, [Sm(3)(C(8)H(7)O(2))(9)](n), was obtained by the hydro-thermal reaction of Sm(NO(3))(3) with 4-methyl-benzoic acid in alkaline aqueous solution. In the asymmetric unit, there are three crystallographically independent Sm(III) ions, two of which are eight-coordinate in a distorted square-anti-prismatic environment, while the third is nine-coordinate in a distorted tricapped trigonal-prismatic coordination. The metal centres are coordinated and bridged by four tridentate, three bidentate and two monodentate methyl-benzoate anions, forming polymeric chains running parallel to the b axis.

SUBMITTER: Feng S

PROVIDER: S-EPMC2961567 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature

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catena-Poly[bis-(μ-4-methyl-benzoato-κO:O')hepta-kis(μ-4-methyl-benzoato-κO,O':O)tris-amarium(III)].

Feng Sun S

Acta crystallographica. Section E, Structure reports online 20080517 Pt 6

The title samarium coordination polymer, [Sm(3)(C(8)H(7)O(2))(9)](n), was obtained by the hydro-thermal reaction of Sm(NO(3))(3) with 4-methyl-benzoic acid in alkaline aqueous solution. In the asymmetric unit, there are three crystallographically independent Sm(III) ions, two of which are eight-coordinate in a distorted square-anti-prismatic environment, while the third is nine-coordinate in a distorted tricapped trigonal-prismatic coordination. The metal centres are coordinated and bridged by f ...[more]

PMID: 21202500

Similar Datasets

catena-Poly[[hexa-kis(μ-4-methyl-benzoato)-κO,O';κO,O':O-trieuropium(III)]-tris-(μ-4-methyl-benzoato)-κO,O';κO,O':O].

Project description:The title europium(III) carboxyl-ate, [Eu(3)(C(8)H(7)O(2))(9)](n), has three independent Eu atoms, two of which are eight-coordinate in a square-anti-prismatic coordination geometry, whereas the third is nine-coordinate in a tricapped trigonal-prismatic coordination geometry. The metal atoms are linked by two bidentate and seven tridentate methyl-benzoate groups into a linear chain running along the b-axis direction.

| S-EPMC2962240 | biostudies-literature

catena-Poly[[bis-(dimethyl sulfoxide-κO)cerium(III)]tris-(μ(2)-3,5-dinitro-benzoato-κO:O')].

Project description:The polymeric title compound, [Ce(C(7)H(3)N(2)O(6))(3)(C(2)H(6)OS)(2)](n), exists as a linear chain along [111] as the three dinitro-benzoate anions each engages in bridging adjacent dimethyl sulfoxide (DMSO) coordinated Ce(III) atoms. The metal atoms are surrounded by eight O atoms in a square-anti-prismatic environment. There are two independent formula units in the asymmetric unit. The S atoms of two of the four DMSO mol-ecules are disordered in a 0.926 (3):0.074 (3) ratio.

| S-EPMC3120519 | 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

catena-Poly[[bis-(4-methyl-benzoato-κO:O')lead(II)]-μ-nicotinamide-κN:O].

Project description:In the title compound, [Pb(C(8)H(7)O(2))(2)(C(6)H(6)N(2)O)](n), the Pb(II) ion is coordinated by two 4-methyl-benzoate (PMB) and one nicotinamide (NA) ligands while symmetry-related NA ligands bridge adjacent Pb(II) ions, forming polymeric chains along the c axis. The carboxyl-ate groups in the two PMB ions are twisted away from the attached benzene ring by 22.9 (2) and 4.6 (2)°. The two benzene rings of the PMB ions are oriented at a dihedral angle of 83.7 (1)°. In a polymeric chain, the NA ligands are linked to PMB ions through intra-molecular N-H⋯O hydrogen bonds. In the crystal structure, adjacent polymeric chains inter-act via N-H⋯O and C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to the bc plane.

| S-EPMC3007553 | biostudies-literature

catena-Poly[[bis-(3-methyl-benzoato-κO,O')lead(II)]-μ-4,4'-bipyridine-κN:N'].

Project description:In the title complex, [Pb(C(8)H(7)O(2))(2)(C(10)H(8)N(2))](n), the Pb(II) atom is located on a twofold rotation axis and is six-coordinated by four carboxyl-ate O atoms from two 3-methyl-benzoate ligands and two N atoms from two 4,4'-bipyridine (4,4'-bpy) ligands, displaying a hemi-directed coordination. The 4,4'-bpy ligand has an inversion center at the mid-point of the central C-C bond. The Pb(II) atoms are linked by bidentate bridging 4,4'-bpy into a chain along [101]. These chains are further connected into layers via C-H⋯O hydrogen bonds.

| S-EPMC3201505 | biostudies-literature

Tetra-kis(μ-2-methyl-benzoato-κO:O')bis-[(methanol-κO)copper(II)].

Project description:In the title compound, [Cu(2)(C(8)H(7)O(2))(4)(CH(3)OH)(2)], the Cu-O bond distances are in the range 1.943 (2)-2.149 (2) Å within a sligthly distorted square-pyramidal coordination. The Cu⋯Cu separation is 2.5912 (4) Å. In the crystal, the mol-ecules are linked into polymeric chains propagating in [001] by inter-molecular O-H⋯O hydrogen bonds and C-H⋯π inter-actions.

| S-EPMC2979172 | biostudies-literature

catena-Poly[[(2-methyl-benzoato-κO,O')sodium]-di-μ-aqua-κO:O'].

Project description:In the title coordination polymer, [Na(C(8)H(7)O(2))(H(2)O)(2)](n), the cation is chelated by the carboxyl-ate O atoms of the anion in a bidentate mode and is surrounded by the O atoms of four water mol-ecules. The coordination of the Na(+) cation is distorted octa-hedral. The water mol-ecules bridge adjacent metal cations, forming polymeric layers parallel to (100). The structure is stabilized by an extensive network of O-H⋯O hydrogen bonds.

| S-EPMC2984086 | biostudies-literature

catena-Poly[[aqua-(3-methyl-benzoato-κO,O')lead(II)]-μ-3-methyl-benzoato-κO:O,O':O'].

Project description:The reaction of lead(II) acetate and 3-methyl-benzoic acid (MBA) in aqueous solution yielded the title polymer, [Pb(C(8)H(7)O(2))(2)(H(2)O)](n). The asymmetric unit contains two Pb(II) atoms, four MBA ligands and two water mol-ecules. Each Pb(II) cation is hepta-coordinated and chelated by four carboxyl-ate O atoms from two MBA ligands. The Pb atoms are bridged through the carboxyl-ate O atoms from another two MBA ligands, leading to a central Pb(2)O(2) core. The Pb-O bond lengths are in the range 2.325 (3)-2.757 (4) Å. The intra- and inter-dimer Pb⋯Pb distances are 4.2942 (3) and 4.2283 (3) Å, respectively, indicating little direct metal-metal inter-action. The coordinating water mol-ecules and carboxyl-ate O atoms are involved in extensive O-H⋯O hydrogen-bonding inter-actions. The complex has an extended ladder-like chain structure and the chains are assembled by hydrogen bonds and π-π inter-actions [centroid-centroid distance = 3.6246 (3) Å] into a three-dimensional supra-molecular structure.

| S-EPMC2969469 | biostudies-literature

catena-Poly[bis-(μ(3)-2-methyl-benzoato)disilver(I)].

Project description:The crystal structure of the title compound, [Ag(2)(C(8)H(7)O(2))(2)](n), features polymeric chains extending along the a axis, with the two Ag(+) cations in a distorted trigonal coordination. The range of Ag-O bond lengths is 2.169 (2)-2.433 (2) Å, whereas the Ag⋯Ag separations are in the range 2.8674 (4)-3.6256 (5) Å. The 2-methyl-benzoate groups are oriented at a dihedral angle of 60.7 (1)° with respect to each other.

| S-EPMC3120433 | 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

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