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Catena-Poly[bis-(?3-2-phenyl-acetato-?(3) O,O':O)bis-(?2-2-phenyl-acetato-?(2) O:O')dicopper(II)(Cu-Cu)].

ABSTRACT: The title polymeric compound, [Cu2(C8H7O2)4] n , was synthesized by the reaction of copper acetate with aqueous phenyl-acetic acid. The unique Cu(II) atom is coordinated by five O atoms from the carboxyl-ate groups of phenyl-acetate ligands, and the strongly distorted octa-hedral coordination environment is completed by a Cu-Cu bond of 2.581?(2)?Å, at whose mid-point is located an inversion centre. The crystal structure consists of infinite polymeric linear chains of Cu(2+) ions, running along [100], linked by bridging phenyl-acetate groups.

SUBMITTER: Benslimane M

PROVIDER: S-EPMC3772427 | BioStudies | 2013-01-01

REPOSITORIES: biostudies

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Bis(?-2-phenyl-acetato-?O:O)bis-[(2,2'-bipyridyl-?N,N')(2-phenyl-acetato-?O)copper(II)] dihydrate.

Project description:The mol-ecule of the binuclear title complex, [Cu(2)(C(8)H(7)O(2))(4)(C(10)H(8)N(2))(2)]·2H(2)O, is located on an inversion centre. The Cu atoms are bridged by two O atoms of the monodentate phenyl-acetate groups [Cu-O = 1.9808?(14) and 2.3668?(14)?Å]. The longer of the two bridging Cu-O bonds takes the apical position of the distorted square-pyramidal environment of the Cu atom, which is completed by two N atoms of the chelate 2,2'-bipyridine ligand [Cu-N = 2.0107?(17) and 2.0234?(16)?Å]. The mol-ecules are assembled into stacks along [100] through ?-? inter-actions with inter-planar distances of 3.630?(4) and 3.407?(3)?Å; the resulting stacks are further connected into a three-dimensional supra-molecular architecture by O-H?O and C-H?O hydrogen-bonding inter-actions.

1000-01-01 | S-EPMC3201355 | BioStudies

Tetra-kis(?-2-phenyl-acetato-?(2) O:O')bis-{[4-(di-methyl-amino)-pyridine-?N (1)]cobalt(II)}.

Project description:The title compound, [Co2(C8H7O2)4(C7H10N2)2], crystallizes as a centrosymmetric dimer containing two Co(II) atoms bridged by four bidentate phenyl-acetate ligands in syn-syn bridging modes. Each Co(II) atom is five-coordinated by four O atoms from four different carboxyl-ate ligands and the ring N atom of a 4-(di-methyl-amino)-pyridine unit, generating a distorted square-pyramidal geometry in which the four O atoms form the basal plane and the N atom occupies the axial position. In the crystal, C-H?O inter-actions link the dinuclear complex mol-ecules into a three-dimensional network.

2013-01-01 | S-EPMC3884428 | BioStudies

Bis(1,10-phenanthroline-?N,N')(phenyl-acetato-?O)copper(II) phenyl-acetate hexa-hydrate.

Project description:In the title compound, [Cu(C(8)H(7)O(2))(C(12)H(8)N(2))(2)](C(8)H(7)O(2))·6H(2)O, the Cu atom is in a distorted square-pyramidal coordination environment. The six crystallographically independent uncoordinated water mol-ecules are inter-connected by hydrogen bonds, completing dodeca-water (H(2)O)(12) clusters which are hydrogen bonded to the carboxyl-ate groups of phenyl-acetate anions, building up one-dimensional anionic chains propagating along [100]. Between the cationic and anionic chains are hydrogen bonds from water mol-ecules to the carboxyl-ate O atoms belonging to the phenyl-acetato ligands.

2008-01-01 | S-EPMC2959544 | BioStudies

catena-Poly[[tetra-kis(?(2)-acetato-?O:O')dicopper(II)(Cu-Cu)]-?(2)-acetato-?O:O'-[bis-[?(2)-3-(dimethyl-amino)propan-1-olato]-?N,O:O;?O:N,O-bis-[(tetra-hydro-furan-?O)copper(II)]]-?(2)-acetato-?O:O'].

Project description:The title complex, [Cu(4)(C(5)H(12)NO)(2)(C(2)H(3)O(2))(6)(C(4)H(8)O)(2)](n), consists of dinuclear [Cu(2)(C(5)H(12)NO)(2)(THF)(2)] (THF is tetra-hydro-furan) and [Cu(2)(CH(3)COO)(4)] units linked through acetate ions, generating parallel one-dimensional polymeric chains propagating in the [10] direction. In the first dinuclear unit, Cu(II) ions related by inversion symmetry are bridged by two 3-(dimethyl-amino)propan-1-olate ligands. Likewise, a pair of inversion-related Cu(II) ions are bridged by four acetate groups. The crystallographically independent Cu centers are linked to one another by a single bridging acetate group, generating an infinite chain. The distorted square-pyramidal coordination of the first metal center is completed with an apical THF mol-ecule, with a long Cu-O bond length of 2.476?(5)?Å. The geometry around the other metal atom is close to octa-hedral, and the Cu?Cu separation in this unit is 2.652?(1)?Å. The distance between the metal centers in the first dinuclear unit is considerably longer [3.068?(1)?Å], suggesting little or no bonding inter-action. The Cu?Cu separation between two acetate-bridged independent Cu centers is 4.860?(2)?Å. The THF mol-ecule has methyl-ene groups disordered over two positions, with occupancies of 0.608?(13) and 0.392?(13).

1000-01-01 | S-EPMC2960524 | BioStudies

catena-Poly[dieth-yl(2-hydroxy-ethyl)-ammonium [[tetra-?-acetato-?O:O'-dicuprate(II)(Cu-Cu)]-?-acetato-?O:O'] dichloro-methane solvate].

Project description:The title compound, {(C(6)H(16)NO)[Cu(2)(CH(3)COO)(5)]·CH(2)Cl(2)}(n), consists of acetate-bridged Cu(2)(CH(3)COO)(4) units that are connected via another acetate anion at each terminus to form infinite anionic [{Cu(2)(CH(3)COO)(4)}(CH(3)COO)](n) chains along [100]. The connecting acetate is hydrogen bonded to the dieth-yl(2-hydroxy-ethyl)ammonium cation, and the dichloro-methane solvent mol-ecule fills the remaining voids in the structure. The O-Cu-Cu angles along the polymeric chain are nearly linear [175.49?(5)°], but individual O-Cu-Cu-O units along the chain are bent and rotated against each other at the bridging acetate ion. Translation of each Cu(2)(CH(3)COO)(4) unit along the chain, represented by the least-squares plane of the two copper ions along with four of the acetate O atoms, rotated these units by 35.16?(3)°.

1000-01-01 | S-EPMC2968312 | BioStudies

Tetra-?-acetato-bis-[(1,3-benzothia-zole)copper(II)](Cu-Cu).

Project description:The title compound, [Cu(2)(CH(3)CO(2))(4)(C(7)H(5)NS)(2)] or [(C(7)H(5)NS)Cu](2)(?-O(2)CCH(3))(4), crystallizes with one mol-ecule per unit cell. The coordination number of copper is six with four basal O atoms, one axial N atom and one axial Cu atom. Four acetate ligands act as bidentate linker and connect two Cu atoms, with a crystallographic inversion center located at the mid-point of the Cu-Cu bond. The acetate ligands form slightly distorted square planes around each metal ion, while the copper ions are displaced by 0.2089?(4)?Å from these planes towards the N atoms. Thus, the Cu-Cu distance is elongated to 2.6378?(7)?Å, compared with the 2.2180?(7)?Å distance between the two basal planes. The angle between the basal plane and the Cu-N bond is 4.84?(6)°.

2011-01-01 | S-EPMC3212163 | BioStudies

Tetra-kis(?(2)-phenyl-acetato-?O:O')bis-[(isoquinoline-?N)copper(II)].

Project description:In the title centrosymmetric binuclear Cu(II) complex, [Cu(2)(C(8)H(7)O(2))(4)(C(9)H(7)N)(2)], the two Cu cations are bridged by four carboxyl-ate groups of the phenyl-acetate anions; each Cu cation is further coordinated by an isoquinoline ligand to complete the distorted CuO(4)N square-pyramidal geometry. The Cu cation is displaced by 0.2092?(8)?Å from the basal plane formed by the four O atoms. Within the dinuclear mol-ecule, the Cu?Cu separation is 2.6453?(6)?Å. Although a parallel, overlapped arrangement of isoquinoline ligands exists in the crystal structure; the longer face-to-face distance of 3.667?(5)?Å suggests there is no ?-? stacking between isoquinoline ring systems.

1000-01-01 | S-EPMC2971894 | BioStudies

Tetra-?-acetato-bis-[(pyridine N-oxide)copper(II)](Cu-Cu).

Project description:The mol-ecule of the title binuclear copper(II) complex, [Cu(2)(CH(3)COO)(4)(C(5)H(5)NO)(2)], occupies a special position on a crystallographic inversion centre; the coordination environment of the Cu(II) atom is slightly distorted square-pyramidal and is made up of four O atoms belonging to four acetate groups in the basal plane with the O atom of pyridine N-oxide ligand in the apical position. The Cu-Cu distance is 2.6376?(6)?Å.

1000-01-01 | S-EPMC2977355 | BioStudies

Tetra-?-acetato-?O:O'-bis-[(N-ethyl-pyrimidin-2-amine)-copper(II)](Cu-Cu).

Project description:In the centrosymmetric title mol-ecule, [Cu(2)(CH(3)COO)(4)(C(6)H(9)N(3))(2)], each of the four acetate groups bridges a pair of Cu(II) atoms [Cu-Cu = 2.6540?(4)?Å]. The distorted octa-hedral geometry of the metal atom is completed by an N-donor atom of the N-ethyl-pyrimidin-2-amine ligand: an intra-molecular N-H?O hydrogen links its N-H group to an acetate carboxyl-ate O atom. In the crystal, C-H?O inter-actions link the mol-ecules into a supra-molecular chain along the b axis.

1000-01-01 | S-EPMC3007943 | BioStudies

Tetra-?-acetato-?O:O'-bis-[(2-phen-oxy-pyrimidine-?N)copper(II)](Cu-Cu).

Project description:The complete dinuclear mol-ecule of the title complex, [Cu(2)(CH(3)COO)(4)(C(10)H(8)N(2)O)(2)], is generated by a centre of inversion. The Cu(II) atom is in a distorted octa-hedral coordination geometry defined by four O atoms derived from four bridging acetate ligands, a terminally connected pyrimidine N atom and a Cu atom.

1000-01-01 | S-EPMC3247554 | BioStudies

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