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Poly[diaqua-?(2)-isonicotinato-?(2)-oxalato-terbium(III)].

ABSTRACT: In the crystal structure of the title complex, [Tb(C(6)H(4)NO(2))(C(2)O(4))(H(2)O)(2)](n), the Tb(III) ion is coordinated by two O atoms from two isonicotinate (inic) anions, four O atoms of two oxalate anions, and two water mol-ecules, displaying a distorted square-antiprismatic geometry. The Tb(III) ion, the inic anion and the water mol-ecules occupy general positions. One of the two crystallographically independent oxalate anions is located on a center of inversion, whereas the second is located on the twofold rotation axis. The carboxyl-ate groups of the inic and oxalate anions link the terbium metal centres into layers. These layers are connected by O-H?O and N-H?O hydrogen bonding into a three-dimensional network.

SUBMITTER: Fang ZQ

PROVIDER: S-EPMC2968019 | biostudies-literature | 2008 Dec

REPOSITORIES: biostudies-literature

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Poly[diaqua-μ(2)-isonicotinato-μ(2)-oxalato-terbium(III)].

Fang Zhan-Qiang ZQ Zeng Rong-Hua RH Li Yan-Ting YT Yang Shuo S Song Zhao-Feng ZF

Acta crystallographica. Section E, Structure reports online 20081220 Pt 1

In the crystal structure of the title complex, [Tb(C(6)H(4)NO(2))(C(2)O(4))(H(2)O)(2)](n), the Tb(III) ion is coordinated by two O atoms from two isonicotinate (inic) anions, four O atoms of two oxalate anions, and two water mol-ecules, displaying a distorted square-antiprismatic geometry. The Tb(III) ion, the inic anion and the water mol-ecules occupy general positions. One of the two crystallographically independent oxalate anions is located on a center of inversion, whereas the second is loca ...[more]

PMID: 21581482

Similar Datasets

Poly[diaqua-?(2)-isonicotinato-?(2)-oxalato-terbium(III)].

Project description:In the crystal structure of the title complex, [Tb(C(6)H(4)NO(2))(C(2)O(4))(H(2)O)(2)](n), the Tb(III) cation is coordinated by four O atoms from two oxalate ligands, two O atoms from two isonicotinate ligands and two O atoms from water mol-ecules within a distorted square-anti-prismatic coordination. The Tb(III) cation, the isonicotinate anion and the two crystallographically independent water mol-ecules occupy general positions, whereas one of the two crystallographically independent oxalate anions is located on a center of inversion, and the second oxalate anion is located on a twofold rotation axis. The Tb(III) cations are linked by the oxalate and isonicotinate anions into layers, which are connected via inter-molecular hydrogen-bonding and ?-? stacking [with centroid-to-centroid distances of 3.509?(2) and 3.343?(3)?Å] inter-actions into a three-dimensional network.

| S-EPMC2968018 | biostudies-literature

catena-Poly[[[diaqua-terbium(III)]-tri-?(2)-isonicotinato-?O:O'] tris(perchlorate) monohydrate].

Project description:In the title complex, {[Tb(C(6)H(5)NO(2))(3)(H(2)O)(2)](ClO(4))(3)·H(2)O}(n), the Tb(III) ion is coordinated by six O atoms from six isonicotinate (inic) ligands and two water mol-ecules, displaying a bicapped trigonal-prismatic geometry. The inic ligands, which are protonated at the pyridine N atom, link the metal centres, forming a polymeric chain running parallel to the a axis. The chains are further assembled via intra- and inter-molecular O-H?O and N-H?O hydrogen-bonding inter-actions into a three-dimensional supra-molecular network involving the inic ligands, the water mol-ecules and the perchlorate anions. One of the perchlorate ions is disordered over two sites with occupancies of 0.561?(17) and 0.439?(17).

| S-EPMC2962002 | biostudies-literature

catena-Poly[[tetra-?(3)-isonicotinato-?(3)-oxalato-?(2)-oxalato-disamarium(III)disilver(I)] dihydrate].

Project description:In the title compound, {[AgSm(C(6)H(4)NO(2))(2)(C(2)O(4))]·H(2)O}(n), the asymmetric unit contains one Sm(III) ion, one Ag(I) ion, two unique isonicotinate (ina) ligands, two half oxalate (ox) ligands (one on an inversion centre, the other on a twofold axis) and one uncoordinated water mol-ecule. The central Sm(III) ion is nine-coordinated by four O-donor atoms from separate bidentate bridging ox ligands and five O-donor atoms from the two ina ligands (both bidentate) and a symmetry-related ina ligand [Sm-O = 2.389?(4)-2.791?(4)?Å], giving a distorted monocapped square anti-prismatic geometry. The Ag(I) ion is three-coordinated in a T-shaped geometry involving two ina N-donor atoms [Ag-N = 2.181?(6) and 2.185?(5)?Å] and a bridging oxalate O-donor atom [Ag-O = 2.620?(4)?Å]. The three-dimensional heterometallic Sm-Ag coordination polymer, having a unique (3,4,6)-connected five-nodal net topology, is constructed from two-dimensional samarium-oxalate layers and pillared Ag(ina)(2) subunits. Inter-molecular water-carboxyl-ate O-H?O hydrogen-bonding inter-actions are also present.

| S-EPMC2980152 | biostudies-literature

Poly[diaqua-?(2)-oxalato-di-?(4)-terephthalato-diytterbium(III)].

Project description:The crystal structure of the title complex, [Yb(2)(C(8)H(4)O(4))(2)(C(2)O(4))(H(2)O)(2)](n), features an extended three-dimensional framework made up of Yb(3+) ions coordinated by terephthalate ligands, oxalate ligands and water mol-ecules. The Yb(3+) ion has a distorted square-anti-prismatic coordination formed by one aqua ligand, two O atoms from an oxalate ligand and five O atoms belonging to four terephthalate anions. Two symmetry-independent terephthalate anions, as well as the oxalate anion, occupy special positions on inversion centers. The water molecule participates in O-H?O hydrogen bonding with both terephthalate anions.

| S-EPMC3008045 | biostudies-literature

Poly[diaqua-?(2)-oxalato-di-?(4)-terephthalato-dilutetium(III)].

Project description:In the title compound, [Lu(2)(C(8)H(4)O(4))(2)(C(2)O(4))(H(2)O)(2)](n), the Lu(3+) cations are each coordinated by eight O atoms of four terephthalate anions, one oxalate anion and one aqua ligand to complete a distorted square-anti-prismatic geometry. They are bridged by the terephthalate ligands, generating a three-dimensional framework, which is further stabilized by the oxalate ligands. The terephthalate ions and oxalate ions are all located on centers of inversion.

| S-EPMC2970178 | biostudies-literature

Poly[[diaqua-hemi-?(4)-oxalato-?(2)-oxalato-praseodymium(III)] monohydrate].

Project description:In the title complex, {[Pr(C(2)O(4))(1.5)(H(2)O)(2)]·H(2)O}(n), the Pr(III) ion, which lies on a crystallographic inversion centre, is coordinated by seven O atoms from four oxalate ligands and two O atoms from two water ligands; further Pr-O coordination from tetra-dentate oxalate ligands forms a three-dimensional structure. The compound crystallized as a monohydrate, the water mol-ecule occupying space in small voids and being secured by O-H?O hydrogen bonding as an acceptor from ligand water H atoms and as a donor to oxalate O-acceptor sites.

| S-EPMC2969896 | biostudies-other

Poly[diaqua-μ(2)-oxalato-di-μ(4)-succinato-diyttrium(III)].

Project description:In the title compound, [Y(2)(C(4)H(4)O(4))(2)(C(2)O(4))(H(2)O)(2)](n), the flexible succinate anion assumes a gauche conformation and bridges the eight-coordinated Y atoms, generating two-dimensional layers parallel to (010). The coordination polymer layers are linked into a three-dimensional framework by the rigid oxalate ligands. The oxalate ions are located on a center of inversion. Inter-molecular O-H⋯O hydrogen bonds help to stabilize the crystal structure.

| S-EPMC2969986 | biostudies-literature

Poly[[diaqua-bis-(?(3)-isonicotinato-?N:O:O')bis-(?(2)-isonicotinato-?N:O)gadolinium(III)disiliver(I)] nitrate monohydrate].

Project description:In the title compound, {[Ag(2)Gd(C(6)H(4)NO(2))(4)(H(2)O)(2)]NO(3)·H(2)O}(n), the Gd(III) ion is coordinated by eight O atoms from six isonicotinate ligands and two water mol-ecules in a distorted square anti-prismatic geometry. Two Ag(I) ions are each bonded to two N atoms from two isonicotinate ligands in a linear or bow-like fashion [N-Ag-N angles = 178.6?(2) and 147.1?(2)°]. These metal ions are connected by the isonicotin-ate ligands into a layer parallel to (010). O-H?O hydrogen bonds donated by the coordinated and uncoordinated water mol-ecules and intra-layer ?-? stacking inter-actions between the pyridine rings [centroid-centroid distances = 3.551?(4) and 3.555?(4)?Å] are observed. The layers inter-act with each other by inter-layer Ag?O(aqua) contacts [2.731?(4)?Å] and ?-? stacking inter-actions between the pyridine rings [centroid-centroid distances = 3.466?(3) and 3.516?(3)?Å], resulting in the formation of a three-dimensional supra-molecular structure.

| S-EPMC2983374 | biostudies-literature

Poly[[diaqua-bis(?(2)-isonicotinato-?N:O)bis-(?(3)-isonicotinato-?N:O:O')neodymium(III)disilver(I)] nitrate monohydrate].

Project description:In the title complex, {[Ag(2)Nd(C(6)H(4)NO(2))(4)(H(2)O)(2)]NO(3)·H(2)O}(n), the Nd(III) ion is coordinated by eight O atoms from six isonicotinate ligands and two water mol-ecules in a distorted square anti-prismatic geometry. Each Ag(I) ion is coordinated by two N atoms from two different isonicotinate ligands. The crystal structure exhibits a two-dimensional heterometallic polymeric layer. O-H?O hydrogen bonds involving the coordinated and uncoordinated water mol-ecules and intra-layer ?-? inter-actions between the pyridine rings [centroid-centroid distances = 3.571?(2) and 3.569?(2)?Å] are observed. Each layer inter-acts with two neighboring ones via Ag?O(H(2)O) contacts and inter-layer ?-? inter-actions [centroid-centroid distances = 3.479?(3) to 3.530?(3)?Å], leading to a three-dimensional supra-molecular network.

| S-EPMC2971066 | biostudies-literature

Poly[diaqua-(?-oxalato)(?-2-oxido-pyridinium-3-carboxyl-ato)praseo-dymium(III)].

Project description:In the title complex, [Pr(C(6)H(4)NO(3))(C(2)O(4))(H(2)O)(2)](n), each Pr(III) ion is coordinated by eight O atoms from two 2-oxynicotinate ligands, two oxalate ligands and two water mol-ecules, displaying a distorted bicapped square-anti-prismatic geometry. The carboxyl-ate groups link adjacent praseodymium metal centres, forming layers parallel to the bc plane. The crystal packing is stabilized by inter-molecular O-H?O and N-H?O hydrogen bonds.

| S-EPMC2968694 | biostudies-literature

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