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Tetra-aqua-tetra-kis-(4,4'-bipyridine dioxide-?O)terbium(III) octa-cyanido-molybdate(V).

ABSTRACT: In the title compound, [Tb(C(10)H(8)N(2)O(2))(4)(H(2)O)(4)][Mo(CN)(8)], both metal atoms are eight-coordinated. The Tb(III) atom displays a dodecahedral geometry, while the Mo(V) ion exhibits a distorted square-anti-prismatic geometry. The Tb atoms are located on a special position of site symmetry [Formula: see text], whereas the Mo atoms are located on a twofold rotation axis. The cations are linked by O-H?O hydrogen bonds.

SUBMITTER: Qian SY

PROVIDER: S-EPMC3152000 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature

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Tetra-aqua-tetra-kis-(4,4'-bipyridine dioxide-κO)terbium(III) octa-cyanido-molybdate(V).

Qian Su-Yan SY Yuan Ai-Hua AH

Acta crystallographica. Section E, Structure reports online 20110604 Pt 7

In the title compound, [Tb(C(10)H(8)N(2)O(2))(4)(H(2)O)(4)][Mo(CN)(8)], both metal atoms are eight-coordinated. The Tb(III) atom displays a dodecahedral geometry, while the Mo(V) ion exhibits a distorted square-anti-prismatic geometry. The Tb atoms are located on a special position of site symmetry [Formula: see text], whereas the Mo atoms are located on a twofold rotation axis. The cations are linked by O-H⋯O hydrogen bonds. ...[more]

PMID: 21836848

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Tetra-aqua-tetra-kis-(4,4'-bipyridine dioxide-?O)terbium(III) octa-cyanidotungstate(V).

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Project description:In the centrosymmetric dinuclear title compound, [Tb(2)(C(7)H(3)F(2)O(2))(6)(C(10)H(8)N(2))(2)], the Tb(III) ion is coordinated by an N,N'-bidentate 2,2'-bipyridine mol-ecule, and two O,O'-bidentate 2,4-difluoro-benzoate (dfb) anions. One of the latter also bonds to the second Tb(III) centre through one of its O atoms. The third dfb anion bonds to one Tb atom from each of its O atoms. Thus, the three dfb species have three different coordination modes. This results in an irregular TbN(2)O(7) coordination sphere for the metal ion. The F atoms and their associated H atoms in the simple bidentate dfb anion are disordered over two sets of sites in a 0.672 (10):0.328 (10) ratio.

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Bis[4-(4-pyridyl)pyridinium] ?-4,4'-bipyridine-bis-[tetra-aqua-(4,4'-bipyridine)manganese(II)] bis-(5-sulfonatobenzene-1,3-dicarboxyl-ate) 4,4'-bipyridine solvate penta-deca-hydrate.

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