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Dimethyl-ammonium diaqua-(pyridine-2,4-dicarboxyl-ato-?N,O)cuprate(II).

ABSTRACT: The asymmetric unit of the title compound, (C(2)H(8)N)(2)[Cu(C(7)H(3)NO(4))(2)(H(2)O)(2)], contains one-half of a mononuclear [Cu(C(7)H(3)NO(4))(2)(H(2)O)(2)](2-) anion, one dimethyl-ammonium cation and one aqua ligand. The Cu(II) atom, lying on an inversion center, is coordinated by two symmetry-related N atoms and two O atoms from one pyridine-2,4-dicarboxyl-ate ligand and two symmetry-related aqua ligands and exhibits a distorted octa-hedral trans-[CuN(2)O(4)] coordination geometry. Multiple crystallographically independent O-H?O and N-H?O hydrogen bonds form a three-dimensional network in the crystal structure.

SUBMITTER: Wang JD

PROVIDER: S-EPMC2979830 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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Dimethyl-ammonium diaqua-(pyridine-2,4-dicarboxyl-ato-κN,O)cuprate(II).

Wang Ji-Dong JD Han Shu-Min SM

Acta crystallographica. Section E, Structure reports online 20100127 Pt 2

The asymmetric unit of the title compound, (C(2)H(8)N)(2)[Cu(C(7)H(3)NO(4))(2)(H(2)O)(2)], contains one-half of a mononuclear [Cu(C(7)H(3)NO(4))(2)(H(2)O)(2)](2-) anion, one dimethyl-ammonium cation and one aqua ligand. The Cu(II) atom, lying on an inversion center, is coordinated by two symmetry-related N atoms and two O atoms from one pyridine-2,4-dicarboxyl-ate ligand and two symmetry-related aqua ligands and exhibits a distorted octa-hedral trans-[CuN(2)O(4)] coordination geometry. Multiple ...[more]

PMID: 21579670

Similar Datasets

catena-Poly[diammonium [diaqua-bis(pyridine-2,4-dicarboxyl-ato-?N,O)cuprate(II)] [[diaqua-copper(II)]-?-pyridine-2,4-dicarboxyl-ato-?N,O:O-[tetra-aqua-cadmium(II)]-?-pyridine-2,4-dicarboxyl-ato-?O:N,O] hexa-hydrate].

Project description:The title mixed-metal complex, {(NH(4))(2)[Cu(C(7)H(3)NO(4))(2)(H(2)O)(2)][CdCu(C(7)H(3)NO(4))(2)(H(2)O)(6)]·6H(2)O}(n), contains one octa-hedrally coordinated Cd(II) center and two octa-hedrally coordinated Cu(II) centers, each lying on an inversion center. The two Cu(II) atoms are each coordinated by two O atoms and two N atoms from two 2,4-pydc (2,4-H(2)pydc = pyridine-2,4-dicarboxylic acid) ligands in the equatorial plane and two water mol-ecules at the axial sites, thus producing two crystallographically independent [Cu(2,4-pydc)(2)(H(2)O)(2)](2-) metalloligands. One metalloligand exists as a discrete anion and the other connects the Cd(H(2)O)(4) units, forming a neutral chain. O-H?O and N-H?O hydrogen bonds connects the polymeric chains, complex anions, ammonium cations and uncoordinated water mol-ecules into a three-dimensional supra-molecular network.

| S-EPMC2971796 | biostudies-other

Butane-1,4-diammonium bis-(pyridine-2,6-dicarboxyl-ato)cuprate(II) trihydrate.

Project description:In the title compound, (C(4)H(14)N(2))[Cu(C(7)H(3)NO(4))(2)]·3H(2)O or (bdaH(2))[Cu(pydc)(2)]·3H(2)O (where bda is butane-1,4-diamine and pydcH(2) is pyridine-2,6-dicarboxylic acid), the Cu(II) atom is coordinated by four O atoms [Cu-O = 2.0557?(16)-2.3194?(16)?Å] and two N atoms [Cu-N = 1.9185?(18) and 1.9638?(18)?Å] from two chelating rings of the pydc(2-) anions, which act as tridentate ligands. The geometry of the resulting CuN(2)O(4) coordination can be described as distorted octa-hedral. The the two pydc(2-) fragments are almost perpendicular to one another [77.51?(11)°]. To balance the charges, two centrosymmetric protonated butane-1,4-diammonium, (bdaH(2))(2+) cations are present. In the crystal structure, extensive O-H?O, N-H?O and C-H?O hydrogen bonds [D?A = 2.720?(2)-3.446?(3)?Å], ion pairing, C-O?? [O?? = 3.099?(2)?Å] and ?-? stacking inter-actions between the pydc(2-) rings [centroid-centroid distance = 3.5334?(15)?Å] contribute to the formation of a three-dimensional supra-molecular structure.

| S-EPMC2961264 | biostudies-literature

catena-Poly[[[diaqua-iron(II)]-μ-pyridine-2,5-dicarboxyl-ato-[tetra-aqua-iron(II)]-μ-pyridine-2,5-dicarboxyl-ato] tetra-hydrate].

Project description:In the crystal structure of the title compound, {[Fe(2)(C(7)H(3)NO(4))(2)(H(2)O)(6)]·4H(2)O}(n), there are two types of coordination for the Fe(II) atoms. One Fe(II) atom is in a distorted octa-hedral N(2)O(4) environment, with two chelating rings from the pyridine-dicarboxyl-ate ligands and two O atoms from the water mol-ecules, while the other is in a distorted octa-hedral O(6) environment with two O atoms from the pyridine-dicarboxyl-ate ligands and four O atoms from the water mol-ecules. Both Fe(II) atoms lie on crystallographic centers of symmetry. The complex possesses an infinite chain structure running along the [101] direction. These chains are inter-connected by the uncoordinated water mol-ecules through O-H⋯O hydrogen bonds.

| S-EPMC2960407 | biostudies-literature

Bis(9-amino-acridinium) bis-(pyridine-2,6-dicarboxyl-ato)cuprate(II) trihydrate.

Project description:The asymmetric unit of the title compound, (C(13)H(11)N(2))(2)[Cu(C(7)H(3)NO(4))(2)]·3H(2)O, consists of one [Cu(pydc)(2)](2-) dianion (pydc is pyridine-2,6-dicarboxyl-ate), two 9-amino-acridinum monocations and three uncoordinated water mol-ecules. The Cu(II) atom is coordinated by two pydc dianions acting as tridentate ligands, and forming five-membered chelate rings with copper(II) as the central atom. The Cu(II) atom is surrounded by four O atoms in the equatorial plane and two pyridine N atoms in axial positions, resulting in a distorted octa-hedral coordination geometry. In the crystal, there are two types of O-H?O and N-H?O hydrogen-bonding synthons linking the anionic and cationic fragments and the water mol-ecules, namely R(4) (4)(16), and R(4) (2)(8). There are also weak C-H?O hydrogen bonds, ?-? stacking inter-actions [the shortest centroid-centroid distance is 3.350?(2)?Å], and a C-O?? inter-action [O?centroid distance = 3.564?(2)?Å], which connect the various components into a three-dimensional network.

| S-EPMC2983232 | biostudies-literature

Bis(2-amino-4-methyl-pyridinium) bis-(pyridine-2,6-dicarboxyl-ato)cuprate(II).

Project description:The asymmetric unit of the title compound, (C(6)H(9)N(2))(2)[Cu(C(7)H(3)NO(4))(2)], contains half of a [Cu(pydc)(2)](2-) (pydcH(2) is pyridine-2,6-dicarb-oxy-lic acid) anion and one protonated 2-amino-4-methyl-pyridine (2a4mpH)(+) counter-ion. The anion is a six-coordinated complex with a distorted CuN(2)O(4) octa-hedral geometry around the Cu(II) ion. N-H?O and C-H?O hydrogen bonds along with ?-? contacts between the pyridine rings of the (2a4mpH)(+) cations [centroid-centroid distance = 3.573?(2)?Å] stabilize the crystal structure.

| S-EPMC3051671 | biostudies-literature

Poly[[diaqua-(ethanol)bis-(?(3)-pyridine-2,3-dicarboxyl-ato)dimanganese(II)] monohydrate].

Project description:The title compound, {[Mn(2)(C(7)H(3)NO(4))(2)(C(2)H(5)OH)(H(2)O)(2)]·H(2)O}(n), is a three-dimensional polymer. There are two symmetry-independent Mn(II) centres with different coordination environments: one Mn(II) atom is coordinated by four O atoms from four ligands and two N atoms from two ligands, the other Mn(II) atom is coordinated by three O atoms from two ligands, two water O atoms and the O atom of an ethanol mol-ecule. The crystal structure is stabilized by O-H?O hydrogen bonds.

| S-EPMC2970155 | biostudies-literature

Poly[diaqua-(?(3)-pyridine-3,5-dicarboxyl-ato-?N:O:O)copper(II)].

Project description:The title complex, [Cu(C(7)H(3)NO(4))(H(2)O)(2)](n), was prepared under hydro-thermal reaction conditions. In the crystal structure, the Cu(II) cation is located on a twofold rotation axis and is coordinated by two carboxyl-ate O atoms and one N atom from three pyridine-3,5-dicarboxyl-ate (PDA) anions and two water mol-ecules with a distorted trigonal-bipyramidal geometry. The tridentate PDA anion is also located on the twofold rotation axis and bridges the Cu(II) cations to form a two-dimensional polymeric layer. O-H?O hydrogen bonding between layers links the two-dimensional layers into a three-dimensional supra-molecular framework.

| S-EPMC2977603 | biostudies-literature

Poly[?(6)-pyridine-2,4-dicarboxyl-ato-barium].

Project description:In the title complex, [Ba(C(7)H(3)NO(4))](n), the coordination geometry around the Ba(II) ion can be described as a distorted bicapped trigonal-prismatic BaNO(7) arrangement. The pyridine-2,4-dicarb-oxy-lic acid ligands exhibit a new coordination mode. Adjacent metal centers are linked by the O atoms of the pyridine-2,4-dicarb-oxy-lic acid ligands, and then form a three-dimensional supra-molecular polymeric framework.

| S-EPMC3006690 | biostudies-literature

Poly[diaqua-(?(5)-pyridine-3,5-dicarboxyl-ato)strontium].

Project description:In the structure of the title compound, [Sr(C(7)H(3)NO(4))(H(2)O)(2)](n), the Sr(II) cation is eight-coordinated in form of a distorted dodeca-hedron by two water O atoms and by five O atoms and one N atom from five pyridine-3,5-dicarboxyl-ate anions. The bridging mode of the anions leads to the formation of a layered network parallel to (100). O-H?O hydrogen bonding between the coordinating water mol-ecules and the carboxyl-ate groups of adjacent layers consolidates the crystal packing. Weak C-H?O inter-actions are also observed.

| S-EPMC3379176 | biostudies-literature

Poly[propane-1,3-diammonium [cuprate(II)-bis-(μ(2)-pyridine-2,3-dicarboxyl-ato)] trihydrate].

Project description:The title polymeric compound {(C(3)H(12)N(2))[Cu(C(7)H(3)NO(4))(2)]·3H(2)O}(n) or {(pnH(2))[Cu(py-2,3-dc)(2)]·3H(2)O}(n) (pn is propane-1,3-diamine and py-2,3-dcH(2) is pyridine-2,3-dicarboxylic acid), was synthesized by reaction of copper(II) chloride dihydrate with a proton-transfer compound, propane-1,3-diammonium pyridine-2,3-dicarboxyl-ate or (pnH(2))(py-2,3-dc), in aqueous solution. The anion is a six-coordinate complex (site symmetry ), with a distorted octa-hedral geometry around Cu(II), consisting of two bidentate pyridine-2,3-dicarboxyl-ate groups and two O atoms of bridging ligands from (py-2,3-dc)(2-) fragments, which are located in trans positions. The (pnH(2))(2+) cation is disordered over two sites by the center of inversion. Inter-molecular hydrogen bonds, π-π [centroid-centroid distances of 3.539 (3) Å] and C-O⋯π stacking inter-actions [O⋯Cg = 3.240 (5) Å; Cg is the center of the pyridine ring], connect the various components into a supra-molecular structure.

| S-EPMC2960456 | biostudies-literature

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