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{4,4',6,6'-Tetra-bromo-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}nickel(II).

ABSTRACT: The asymmetric unit of the title compound, [Ni(C(19)H(16)Br(4)N(2)O(2))], comprises half of a Schiff base complex. The geometry around the Ni(II) atom, located on a twofold rotation axis, is distorted square-planar, which is supported by the N(2)O(2) donor atoms of the coordinated ligand. The dihedral angle between the substituted benzene rings is 23.19 (17)°. In the crystal, a short inter-molecular Br⋯Br [3.6475 (7) Å] inter-action is present.

SUBMITTER: Kargar H

PROVIDER: S-EPMC3379092 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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{4,4',6,6'-Tetra-bromo-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}nickel(II).

Kargar Hadi H Kia Reza R Tahir Muhammad Nawaz MN

Acta crystallographica. Section E, Structure reports online 20120512 Pt 6

The asymmetric unit of the title compound, [Ni(C(19)H(16)Br(4)N(2)O(2))], comprises half of a Schiff base complex. The geometry around the Ni(II) atom, located on a twofold rotation axis, is distorted square-planar, which is supported by the N(2)O(2) donor atoms of the coordinated ligand. The dihedral angle between the substituted benzene rings is 23.19 (17)°. In the crystal, a short inter-molecular Br⋯Br [3.6475 (7) Å] inter-action is present. ...[more]

PMID: 22719313

Similar Datasets

{4,4',6,6'-Tetrachloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}dioxidomolyb-denum(VI).

Project description:The asymmetric unit of the title compound, [Mo(C(19)H(16)Cl(4)N(2)O(2))O(2)], comprises two independent mol-ecules (A and B). The geometry around the Mo(VI) atom is distorted octa-hedral in each complex mol-ecule, supported by two oxide O atoms and the N(2)O(2) donor atoms of the coordinating ligand. The dihedral angle between the benzene rings is 74.96 (11) Å for mol-ecule A and 76.05 (11) Å for mol-ecule B. In the crystal, the B mol-ecules are linked by pairs of C-H⋯Cl hydrogen bonds, forming inversion dimers. The crystal structure is further stabilized by C-H⋯π inter-actions. An inter-esting feature of the crystal structure is a Cl⋯Cl contact [3.3748 (18) Å], which is shorter than the sum of the van der Waals radii of Cl atoms (3.50 Å).

| S-EPMC3470140 | biostudies-literature

{4,4',6,6'-Tetra-iodo-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}copper(II).

Project description:In the title compound, [Cu(C(19)H(16)I(4)N(2)O(2))], the Cu(II) atom and the substituted C atom of the diamine segment lie on a crystallographic twofold rotation axis. The geometry around the Cu(II) atom is distorted square-planar, which is supported by the N(2)O(2) donor atoms of the coordinated Schiff base. The dihedral angle between the symmetry-related substituted benzene rings is 29.40 (19)°. In the crystal, a short I⋯I [3.8766 (6) Å] contact is present and links neighbouring mol-ecules into chains propagating along the a axis.

| S-EPMC3379091 | biostudies-literature

{4,4',6,6'-Tetra-chloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]}nickel(II).

Project description:In the title compound, [Ni(C(19)H(16)Cl(4)N(2)O(2))], the Ni(II) ion is in a distorted square-planar environment coordinated by two N atoms and two O atoms of the tetra-dentate ligand. The dihedral angle between the benzene rings is 24.8 (2)°. In the crystal, mol-ecules are linked into chains along the b axis by weak C-H⋯O and C-H⋯Cl inter-actions. An inter-molecular Cl⋯Cl [3.4564 (19) Å] inter-action is present which is shorter than the sum of the van der Waals radii of Cl atoms (3.50 Å).

| S-EPMC3274915 | biostudies-literature

{4,4',6,6'-Tetra-iodo-2,2'-[propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato-κ(4)O,N,N',O'}nickel(II).

Project description:The asymmetric unit of the title compound, [Ni(C(17)H(12)I(4)N(2)O(2))], comprises half of a Schiff base complex. The Ni(II) and central C atom of the propyl chain are located on a twofold rotation axis. The geometry around the Ni(II) atom is square planar, supported by the N(2)O(2) donor atoms of the coordinated ligand. In the crystal, there are no significant inter-molecular inter-actions present. The crystal studied was a non-merohedral twin with a refined twin component ratio of 0.944 (1):0.056 (1).

| S-EPMC3414144 | biostudies-literature

{4,4',6,6'-Tetra-bromo-2,2'-[(2,2-dimethyl-propane-1,3-di-yl)bis-(nitrilo-methanylyl-idene)]diphenolato}copper(II).

Project description:In the title compound, [Cu(C(19)H(16)Br(4)N(2)O(2))], the Cu(II) ion and the substituted C atom of the diamine fragment lie on a crystallographic twofold rotation axis. The geometry around the Cu(II) ion is distorted square-planar, which is defined by the N(2)O(2) donor atoms of the coordinated Schiff base ligand. The dihedral angle between the symmetry-related substituted benzene rings is 25.33 (14)°. The crystal structure is stabilized by an inter-molecular π-π inter-action [centroid-centroid distance = 3.8891 (18) Å].

| S-EPMC3343805 | biostudies-literature

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

Project description:In the title compound, [Ni(C(19)H(18)Br(2)N(2)O(2))], the Ni(II) ion, lying on a twofold rotation axis, is coordinated by two N atoms and two O atoms from the Schiff base ligand in a distorted square-planar geometry. Weak inter-molecular C-H⋯O hydrogen bonds stabilize the crystal structure.

| S-EPMC3099811 | 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-iodo-2,2'-[(2,2-dimethyl-propane-1,3-di-yl)bis-(nitrilo-methanylyl-idene)]diphenolato}nickel(II).

Project description:The asymmetric unit of the title compound, [Ni(C(19)H(16)I(4)N(2)O(2))], comprises half of a Schiff base complex. The Ni(II) atom is located on a twofold rotation axis which also bis-ects the central C atom of the 2,2-dimethyl-propane group of the ligand. The geometry around the Ni(II) atom is distorted square-planar, with a dihedral angle of 21.7?(3)° between the symmetry-related N/Ni/O coordination planes. The dihedral angle between the symmetry-related benzene rings is 27.9?(3)°. In the crystal, short inter-molecular I?I [3.8178?(9) and 3.9013?(10)?Å] inter-actions are present.

| S-EPMC3393197 | biostudies-literature

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

{4,4',6,6'-Tetra-chloro-2,2'-[2,2-dimethyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]}copper(II).

Project description:In the title Schiff base complex, [Cu(C(19)H(16)Cl(4)N(2)O(2))], the geometry around the Cu(II) atom is distorted square-planar defined by the N(2)O(2) donor atoms of the coordinated ligand. The dihedral angle between the substituted benzene rings is 29.95?(16)°. In the crystal, mol-ecules are linked along the b axis, forming individual dimers through C-H?O inter-actions. The crystal structure is further stabilized by inter-molecular ?-? inter-actions [centroid-centroid distance = 3.6131?(17)?Å].

| S-EPMC3274908 | biostudies-other

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