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4,4',6,6'-Tetra-bromo-2,2'-[(E,E)-ethane-1,2-diylbis(nitrilo-methanylyl-idene)]di-phenol.

ABSTRACT: The asymmetric unit of the title compound, C(16)H(12)Br(4)N(2)O(2), comprises half of a potential tetra-dentate Schiff base ligand. The whole mol-ecule is generated by an inversion center located in the middle of the C-C bond of the ethyl-ene segment. There are intra-molecular O-H?N hydrogen bonds making S(6) ring motifs. In the crystal, no significant inter-molecular inter-actions are observed.

SUBMITTER: Kargar H

PROVIDER: S-EPMC3414283 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature

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4,4',6,6'-Tetra-bromo-2,2'-[(E,E)-ethane-1,2-diylbis(nitrilo-methanylyl-idene)]di-phenol.

Kargar Hadi H Kia Reza R Adabi Ardakani Amir A Tahir Muhammad Nawaz MN

Acta crystallographica. Section E, Structure reports online 20120707 Pt 8

The asymmetric unit of the title compound, C(16)H(12)Br(4)N(2)O(2), comprises half of a potential tetra-dentate Schiff base ligand. The whole mol-ecule is generated by an inversion center located in the middle of the C-C bond of the ethyl-ene segment. There are intra-molecular O-H⋯N hydrogen bonds making S(6) ring motifs. In the crystal, no significant inter-molecular inter-actions are observed. ...[more]

PMID: 22904816

Similar Datasets

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

Project description: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.

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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.

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Acetato(aqua){6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}cobalt(III) methanol disolvate.

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Project description:The title complex, [Cu(C(18)H(16)Br(2)N(2)O(4))(H(2)O)], lies on a crystallographic mirror plane with the Cu(II) ion coordinated by two N atoms and two O atoms of a tetra-dentate Schiff base ligand and one O atom from a water ligand in a slightly distorted square-pyramidal environment. The mirror plane, which coincides with the Cu-O(water) bond, imposes disorder of the atoms of the ethyl-ene group. In the crystal structure, inter-molecular O-H?O hydrogen bonds link complex mol-ecules into extended chains along [100].

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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.

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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).

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{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?? 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).

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{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.

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Project description:In the title hydrate, C24H30N2O4·H2O, the organic mol-ecule adopts an E conformation with respect to the azomethine double bonds. The cyclo-hexane ring is in a chair conformation. The dihedral angle between benzene rings is 79.6 (2)°. Two intra-molecular O-H⋯N hydrogen bonds are present. In the crystal, the components are linked by O-H⋯O hydrogen bonds and weak C-H⋯π inter-actions, generating a three-dimensional supramolecular architecture.

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