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Di-μ 2-acetato-1:2κ (2) O:O';2:3κ (2) O:O'-bis-{μ 2-4,4'-di-chloro-2,2'-[2,2-di-methyl-propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}-1:2κ (6) O,N,N',O':O,O';2:3κ (6) O,O':O,N,N',O'-tri-cadmium.

ABSTRACT: In the title linear homo-trinuclear complex, [Cd3(C19H18Cl2N2O2)2(C2H3O2)2], the central Cd(II) atom is located on a centre of inversion and has a distorted octa-hedral coordination geometry formed by four O atoms from two bidentate/tetra-dentate Schiff base ligands and two O atoms from two bridging acetate ligands. The coordination geometry of the terminal Cd(II) atom is square-pyramidal with the tetra-dentate part of the ligand in the basal plane and one O atom from an acetate ligand occupying the apical site. The six-membered CdN2C3 ring adopts a chair conformation. The acetate-bridged Cd⋯Cd distance is 3.3071 (2) Å. The crystal structure is stabilized by C-H⋯O hydrogen bonds, which form C(7) chain motifs and give rise to a two-dimensional supra-molecular network structure lying parallel to the ab plane.

SUBMITTER: Kubono K

PROVIDER: S-EPMC3884977 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Di-?3-acetato-bis-{?-6,6'-dieth-oxy-2,2'-[propane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}dicadmiumdisodium ethanol 0.67-solvate.

Project description:In the crystal of the title compound, [Cd2Na2(C2H3O2)2(C21H24N2O4)2]·0.67C2H6O, the doubly deprotonated Schiff base ligand N,N',O,O'-chelates to the Cd(II) cation, which is also O,O'-chelated by the acetate ion. Two Cd-Schiff base units are connected to two Na(+) atoms to form the tetra-nuclear complex, in which the Cd(2+) and Na(+) cations show distorted octa-hedral coordinations. The asymmetric unit consists of half a tetra-nuclear mol-ecule (lying on an inversion center) and a full tetra-nuclear mol-ecule (lying on a general position) along with a lattice ethanol mol-ecule, which links to the coordinating acetate ion via an O-H?O hydrogen bond. In the crystal, the propyl and ethyl groups of the complex mol-ecule are disordered over two positions in a 1:1 ratio; the ethyl group of the lattice ethanol mol-ecule is also equally disordered over two positions.

| S-EPMC3588789 | biostudies-literature

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| S-EPMC3393214 | biostudies-literature

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| S-EPMC3884274 | biostudies-literature

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Project description:The complex mol-ecule of the title compound, [Cu(3)Br(C(22)H(28)N(4)O(2))(2)]Br·2C(3)H(7)NO, contains three copper atoms, two of which are five-coordinate within a square-pyramidal environment and linked by a bridging Br atom occupying the apical position in each square pyramid. The remaining Cu atom is four-coordinate but with considerable tetra-hedral disortion [the dihedral angle between the two chelate planes is 69.21 (7)°]. There are two mol-ecules of dimethyl-formamide (DMF) present as solvent mol-ecules, one of which is disordered over two equivalent conformations with occupancies of 0.603 (5) and 0.397 (5). The amine H atoms are involved in both inter- and intra-molecular hydrogen-bonding inter-actions with the Br and O atoms of the cation, as well as with the O atom of the ordered DMF mol-ecule.

| S-EPMC3200975 | biostudies-literature

{μ-6,6'-Dimeth-oxy-2,2-[propane-1,3-diylbis(nitrilo-methanylyl-idene)]diphenolato}trinitratocopper(II)dysprosium(III) methanol monosolvate.

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| S-EPMC3051998 | biostudies-literature

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

Project description:The asymmetric unit of the title compound, [Cu(C(21)H(24)N(2)O(2))]·H(2)O, comprises half of a Schiff base complex and half of a water mol-ecule. The whole compound is generated by crystallographic twofold rotation symmetry. The geometry around the Cu(II) atom, located on a twofold axis, is distorted square-planar, which is supported by the N(2)O(2) donor atoms of the coordinating Schiff base ligand. The dihedral angle between the symmetry-related benzene rings is 47.5 (4)°. In the crystal, the water mol-ecule that is hydrogen bonded to the coordinated O atoms links the mol-ecules via O-H⋯O inter-actions into chains parallel to [001]. The crystal structure is further stabilized by C-H⋯π inter-actions, and by π-π inter-actions involving inversion-related chelate rings [centroid-centroid distance = 3.480 (4) Å].

| S-EPMC3435595 | biostudies-literature

{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).

| S-EPMC3470140 | biostudies-literature

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

Project description:The asymmetric unit of the title compound, [Cu(C(21)H(24)N(2)O(4))]·H(2)O, comprises half of a Schiff base complex and a water mol-ecule. The Cu(II) atom, water mol-ecule and one C atom of the central propyl-ene segment are located on a twofold rotation axis. The geometry around the Cu(II) atom is distorted square-planar, supported by the N(2)O(2) donor atoms of the coordinating ligand. The dihedral angle between the symmetry-related benzene rings is 42.56?(19)°. In the crystal, O-H?O hydrogen bonds involving the water mol-ecule make an R(2) (1)(6) ring motif. Complex mol-ecules are linked into a chain along the c axis via C-H?O inter-actions.

| S-EPMC3470142 | biostudies-literature

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