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Catena-Poly[copper(II)-{μ(3)-4,4'-dichloro-2,2'-[butane-1,4-diylbis(nitrilo-methanyl-yl-idene)]diphenolato-κN,O:N',O':O'}].

ABSTRACT: The asymmetric unit of the title coordination polymer, [Cu(C(18)H(16)Cl(2)N(2)O(2))](n), consists of a Schiff base complex in which the Cu(II) atom adopts a square-pyramidal coordination geometry, being coordinated by two N and two O atoms of symmetry-related ligands and by a third O atom from a complex related by an inversion center. In the structure, a crystallographic twofold rotation axis bis-ects the central C-C bonds of the n-butyl spacers of the designated Schiff base ligands, making symmetry-related dimeric units, which are twisted around Cu(II) atoms in a bis-bidentate coordination mode. In the crystal, these dimeric units are connected through the third bridging Cu-O bonds [2.3951 (13) Å], forming one-dimensional coordination polymers, which propagate along [001]. Furthermore, inter-molecular π-π inter-actions [centroid-centroid distance = 3.811 (1) Å] stabilize the crystal packing.

SUBMITTER: Kargar H

PROVIDER: S-EPMC3099832 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature

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catena-Poly[copper(II)-{μ(3)-4,4'-dichloro-2,2'-[butane-1,4-diylbis(nitrilo-methanyl-yl-idene)]diphenolato-κN,O:N',O':O'}].

Kargar Hadi H Kia Reza R

Acta crystallographica. Section E, Structure reports online 20110326 Pt 4

The asymmetric unit of the title coordination polymer, [Cu(C(18)H(16)Cl(2)N(2)O(2))](n), consists of a Schiff base complex in which the Cu(II) atom adopts a square-pyramidal coordination geometry, being coordinated by two N and two O atoms of symmetry-related ligands and by a third O atom from a complex related by an inversion center. In the structure, a crystallographic twofold rotation axis bis-ects the central C-C bonds of the n-butyl spacers of the designated Schiff base ligands, making symm ...[more]

PMID: 21754006

Similar Datasets

catena-Poly[{?(3)-4,4',6,6'-tetra-chloro-2,2'-[butane-1,4-diylbis(nitrilo-methanyl-yl-idene)]diphenolato}{?(2)-4,4',6,6'-tetra-chloro-2,2'-[butane-1,4-diylbis(nitrilo-methanylyl-idene)]diphenolato}dicopper(II)].

Project description:The asymmetric unit of the title compound, [Cu(2)(C(18)H(14)Cl(4)N(2)O(2))(2)](n), contains two independent Cu(II) ions which are bridged by a pair of 4,4',6,6'-tetra-chloro-2,2'-[butane-1,4-diylbis(nitrilo-methanylyl-idene)]diphenolate ligands, forming a dinuclear unit. One of the Cu(II) ions is coordinated in a distorted square-planar environment and the other is coordinated in a distorted square-pyramidal environment. The long apical Cu-O bond of the square-pyramidal coordinated Cu(II) ion is formed by a symmetry-related O atom, creating a one-dimensional polymer along [010]. In addition, short inter-molecular Cl?Cl distances [3.444?(2)?Å] and weak ?-? inter-actions [centroid-centroid distances = 3.736?(2)-3.875?(3)?Å] are observed. The crystal studied was an inversion twin with a refined twin component ratio of 0.60?(1):0.40?(1).

| S-EPMC3393241 | biostudies-other

catena-Poly[{?(3)-4,4',6,6'-tetra-bromo-2,2'-[butane-1,4-diylbis(nitrilo-methan-ylyl-idene)]diphenolato}{?(2)-4,4',6,6'-tetra-bromo-2,2'-[butane-1,4-diylbis(nitrilo-methanylyl-idene)]dipheno-lato}dicopper(II)].

Project description:The asymmetric unit of the title coordination polymer consists of a dinuclear neutral complex mol-ecule of formula [Cu(2)(C(18)H(14)Br(4)N(2)O(2))(2)](n). One of the Cu(II) ions is coordinated in a distorted square-planar geometry, whereas the other is coordinated in a distorted square-pyramidal geometry, the long apical Cu-O bond [2.885?(4)?Å] of the square-pyramidal coordination being provided by a symmetry-related O atom creating a one-dimensional polymer along [010]. ?-? stacking inter-actions [centroid-centroid distance = 3.783?(4)?Å] and short inter-chain Br?Br inter-actions [3.6142?(12)-3.6797?(12)?Å] are observed.

| S-EPMC3393252 | biostudies-literature

catena-Poly[copper(II)-{μ(3)-4,4'-dibromo-2,2'-[butane-1,4-diylbis(nitrilo-methanyl-yl-idene)]diphenolato-κN,O:N',O':O'}].

Project description:The asymmetric unit of the title coordination polymer, [Cu(C(18)H(16)Br(2)N(2)O(2))](n), consists of a Schiff base complex in which a crystallographic twofold rotation axis bis-ects the central C-C bonds of the n-butyl spacers of the designated Schiff base ligands, making symmetry-related dimer units, which are twisted around Cu(II) atoms in a bis-bidentate coordination mode. In the crystal, these dimeric units are connected through Cu-O bonds, forming one-dimensional coordination polymers, which propagate along [001]. The Cu(II) atom adopts a square-based pyramidal coordination geometry, being coordinated by two N and two O atoms of symmetry-related ligands and by a third O atom of a neighboring complex. Furthermore, inter-molecular π-π inter-actions [centroid-centroid distance = 3.786 (2) Å] and C-H⋯O inter-actions stabilize the crystal packing.

| S-EPMC3099995 | biostudies-literature

{4,4'-Dichloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}copper(II).

Project description:In the title Schiff base complex, [Cu(C(19)H(18)Cl(2)N(2)O(2))], the Cu(II) ion is coordinated in a distorted square-planar environment by two N atoms and two O atoms of the tetra-dentate ligand. The dihedral angle between the benzene rings is 36.86 (14)°. In the crystal, mol-ecules are linked into inversion dimers by pairs of weak C-H⋯O hydrogen bonds. In addition, π-π [centroid-centroid distance = 3.7279 (16) Å] and weak C-H⋯π inter-actions are observed.

| S-EPMC3414174 | biostudies-literature

4,4',6,6'-Tetra-tert-butyl-2,2'-[butane-1,4-diylbis(nitrilo-methanylyl-idene)]diphenol.

Project description:The title compound, C(34)H(52)N(2)O(2), is centrosymmetric, the mid-point of the central C-C bond being located on an inversion centre. Intra-molecular O-H⋯N and weak C-H⋯O hydrogen bonds are observed, but no significant inter-molecular inter-actions occur in the crystal structure.

| S-EPMC3247362 | biostudies-literature

4,4'-[Butane-1,4-diylbis(nitrilo-methyl-idyne)]dibenzonitrile.

Project description:The title Schiff base compound, C(20)H(18)N(4), lies across a crystallographic inversion centre and adopts E configurations with respect to the C=N bonds. The asymmetric unit of the compound is composed of one half-mol-ecule. The imino group is coplanar with the benzene ring. Within the mol-ecule, the planar units are parallel but extend in opposite directions from the methyl-ene bridge. In the crystal structure, neighbouring mol-ecules are linked together by weak inter-molecular C-H?N hydrogen bonds involving the cyano N atoms. These form ten-membered rings, generating R(2) (2)(10) ring motifs, and link the mol-ecules along the c axis.

| S-EPMC2960678 | biostudies-literature

{μ-6,6'-Dimeth-oxy-2,2'-[butane-1,4-diylbis(nitrilo-methanylyl-idene)]diphenolato}trinitratocopper(II)samarium(III).

Project description:In the monomeric dinuclear title complex, [CuSm(C(20)H(22)N(2)O(4))(NO(3))(3)], the four-coordinate Cu(II) ion has a square-planar geometry involving two O atoms and two N atoms of the deprotonated Schiff base ligand. The Sm(III) ion is ten-coordinate, chelated by four O donor atoms of the Schiff base and two O atoms each from three bidentate nitrate groups, one of which is disordered over two sites in a 0.55 (7):0.45 (7) ratio.

| S-EPMC3200624 | biostudies-literature

{4,4'-Dichloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanyl-ylidene)]diphenolato-κO,N,N',O'}nickel(II).

Project description:In the title compound, [Ni(C(19)H(18)Cl(2)N(2)O(2))], the Ni(II) atom shows a slightly distorted square-planar geometry. The dihedral angle between the mean planes of the coordination rings is 9.15 (12)° while the dihedral angle between the mean planes of the two aromatic rings is 3.48 (16)°. In the crystal, pairs of inter-molecular C-H⋯O hydrogen bonds link neighboring mol-ecules into a chain along the a axis. The crystal structure is further stabilized by π-π inter-actions [centroid-centroid distance = 3.883 (2) Å].

| S-EPMC3151962 | biostudies-literature

{μ(2)-6,6'-Dimeth-oxy-2,2'-[butane-1,4-diylbis(nitrilo-methyl-idyne)]diphenolato}trinitratocopper(II)neodymium(III).

Project description:In the title complex, [CuNd(C(20)H(22)N(2)O(4))(NO(3))(3)], the Cu(II) ion is coordinated in a distorted square-planar environment by two O atoms and two N atoms of a tetra-dentate Schiff base ligand. The Nd(III) ion is ten-coordinated by three bis-chelating nitrate groups and four O atoms of the Schiff base ligand. The atoms of one of the nitrato ligands are disordered over two sets of sites, with refined occupancies of 0.567 (13) and 0.433 (17).

| S-EPMC3009133 | biostudies-literature

4,4'-Dichloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methyl-idyne)]diphenol.

Project description:The crystal of the title Schiff base compound, C(19)H(20)Cl(2)N(2)O(2), contains of two crystallographically independent mol-ecules with similar conformations. In each mol-ecule, two intramolecular O-H⋯N bonds generate S(6) motifs. The N atoms are also in close proximity to two H atoms of the dimethyl-propane groups, with H⋯N distances between 2.59 and 2.62 Å. The imine group is coplanar with the benzene ring. The dihedral angles between the benzene rings in the two independent mol-ecules are 58.20 (12) and 47.95 (12)°. The structure displays short inter-molecular Cl⋯Cl [3.3869 (11) Å] and Cl⋯O [3.175 (2)-3.204 (2) Å] inter-actions. The crystal structure is further stabilized by weak inter-molecular C-H⋯O, C-H⋯π and π-π [centroid-centroid distances 3.6416 (13)-3.8705 (14) Å] inter-actions.

| S-EPMC2967979 | biostudies-literature

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