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Di-?-acetato-?O,O':O;?O:O,O'-bis-[(acetato-?O,O')(1,10-phenan-throline-?N,N')cadmium(II)].

ABSTRACT: The title compound, [Cd(2)(C(2)H(3)O(2))(4)(C(12)H(8)N(2))(2)], consists of dimeric units built up around a crystallographic symmetry centre. Each cadmium(II) unit is chelated by a 1,10-phenanthroline (phen) group and two acetate ligands, one of which also acts as a bridge, linking both seven-coordinated cadmium(II) centres. The crystal structure is governed by a single ?-? inter-action between stacked phen groups [centroid-centroid distance 3.5209?(11)?Å], leading to a planar structure parallel to (010).

SUBMITTER: Harvey MA

PROVIDER: S-EPMC2959765 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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Di-μ-acetato-κO,O':O;κO:O,O'-bis-[(acetato-κO,O')(1,10-phenan-throline-κN,N')cadmium(II)].

Harvey Miguel Angel MA Baggio Sergio S Garland María Teresa MT Baggio Ricardo R

Acta crystallographica. Section E, Structure reports online 20081022 Pt 11

The title compound, [Cd(2)(C(2)H(3)O(2))(4)(C(12)H(8)N(2))(2)], consists of dimeric units built up around a crystallographic symmetry centre. Each cadmium(II) unit is chelated by a 1,10-phenanthroline (phen) group and two acetate ligands, one of which also acts as a bridge, linking both seven-coordinated cadmium(II) centres. The crystal structure is governed by a single π-π inter-action between stacked phen groups [centroid-centroid distance 3.5209 (11) Å], leading to a planar structure parallel ...[more]

PMID: 21580889

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Project description:In the title dinuclear complex, [Tb(2)(C(8)H(7)O(3))(6)(C(12)H(8)N(2))(2)], each Tb(III) ion is eight-coordinated by two N atoms from a 1,10-phenanthroline ligand and six O atoms from the carboxyl-ate groups of five 4-methoxy-benzoate ligands in a distorted square-anti-prismatic geometry. All six 4-methoxy-benzoate ligands act in a bidentate mode, two coordinating to one Tb center each and the other four bridging two Tb centers [Tb?Tb separation = 4.3144?(6)?Å]. In the crystal, inter-molecular ?-? inter-actions between the aromatic rings of 1,10-phenanthroline and 4-methoxy-benzoate ligands [centroid-centroid distance = 3.742?(9)?Å] link two mol-ecules into a centrosymmetric dimer. Weak inter-molecular C-H?O hydrogen bonds help to consolidate the crystal packing.

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Di-?-acetato-?O,O':O';?O:O,O'-bis-[(acetato-?O,O')bis-(5-nitro-1,10-phenanthroline-?N,N')cadmium].

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Project description:The title compound, [Cu(2)(C(2)Cl(3)O(2))(2)Cl(2)(C(12)H(8)N(2))(2)], features a centrosymmetric binuclear complex. The coordination geometry around the Cu(II) atom is square-pyramidal, comprising two N atoms from a symmetrically chelating 1,10-phenanthroline ligand, one O atom from a trichloro-acetate ligand and two Cl(-) anions. In addition, there is a weak intra-molecular Cu?O inter-action of 2.9403?(14)?Å involving the carbonyl O atom of the trichloro-acetate ligand. The central Cu(2)Cl(2) core takes the form of a rhombus, owing to the disparate Cu-Cl bond lengths. Mol-ecules are connected in the crystal structure by C-H?Cl and C-H?O inter-actions.

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Project description:In the title complex, [Cu(C(9)H(9)NO(4)S)(C(12)H(8)N(2))(H(2)O)], the Cu(II) ion is coordinated in a distorted square-pyramidal geometry by the two N atoms from a 1,10-phenanthroline ligand, one N atom from the deprotonated amino group of an N-tosyl-glycinate ligand, one O atom from the carboxyl-ate part of the N-tosyl-glycinate ligand and a water O atom. Inter-molecular O-H?O hydrogen bonds involving the water H atoms link neighboring mol-ecules into supra-molecular chains along [010]. Weak ?-? stacking inter-actions [centroid-centroid distances of 3.456?(1) and 3.691?(1)?Å] between the benzene rings of 1,10-phenanthroline ligands of adjacent mol-ecules extend the chains into a layer structure parallel to (001).

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