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Dichloridodi-?(2)-hydroxido-di-?(3)-oxido-octa-phenyl-tetra-tin(IV) dimethyl sulfoxide disolvate.

ABSTRACT: In the centrosymmetric tetra-nuclear title mol-ecule, [Sn(4)(C(6)H(5))(8)Cl(2)O(2)(OH)(2)]·2C(2)H(6)OS, the two independent tin(IV) atoms show distorted trigonal-bipyramidal SnC(2)O(3) and SnC(2)O(2)Cl coordination geometries. The four tin(IV) atoms are bridged by the hydroxo and oxo ligands, forming a ladder-like array of three edge-connected Sn(2)O(2) squares. The solvent mol-ecules are linked to the tetra-nuclear mol-ecule via O-H?O hydrogen bonds.

SUBMITTER: Foladi S

PROVIDER: S-EPMC3569190 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature

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Dibromidodi-μ-hydroxido-di-μ(3)-oxido-octa-phenyl-tetra-tin(IV).

Project description:In the centrosymmetric title compound, [Sn(4)Br(2)(C(6)H(5))(8)O(2)(OH)(2)], the four tin(IV) atoms are bridged by the hydroxo and oxo ligands, forming a ladder-like array of three edge-connected Sn(2)O(2) squares. The two independent tin atoms show distorted trigonal-bipyramidal SnC(2)O(3) and SnC(2)O(2)Br coordination geometries.

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Octa-kis(2-chloro-benz-yl)di-?(2)-hydroxido-di-?(3)-oxido-bis-(2-phenyl-acetato)tetra-tin(IV).

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Octa-kis(dimethyl sulfoxide-?O)cerium(III) ?(6)-oxido-dodeca-?(2)-oxido-hexa-oxidohexa-molybdate(VI) dimethyl sulfoxide tetrasolvate.

Project description:The title complex, [Ce(C(2)H(6)OS)(8)](2)[Mo(6)O(19)](3)·4C(2)H(6)OS, was obtained as a byproduct of the reaction of [(C(4)H(9))(4)N](2)[Mo(6)O(19)] with Ce(NO(3))(3)·6H(2)O and phthalic acid in dimethyl-sulfoxide solution. The asymmetric unit consists of a complex [Ce(C(2)H(6)OS)(8)](3+) cation, one and a half of the Lindqvist-type [Mo(6)O(19)](2-) polyanions and two dimethyl-sulfoxide solvent mol-ecules; the half polyanion lies on an inversion center. The Ce(3+) ion is coordinated by eight dimethyl-sulfoxide ligands through the O atoms in the form of a distorted square antiprism. The Ce-O bond lengths range from 2.429?(6) to 2.550?(5)?Å. The cohesion of the structure is ensured by S?O [3.115?(6), 3.242?(10) and 3.12?(3)?Å], O?O [3.037?(10)?Å] and C-H?O inter-actions between cations and anions. The S and C atoms of a dmso ligand are disordered over three sites in a 0.45:0.30:0.25 ratio. The dimethyl-sulfoxide solvent mol-ecules are highly disordered and could not be modelled successfully; their contribution was therefore removed from the refinement using the SQUEEZE routine in PLATON [Spek (2009 ?). Acta Cryst. D65, 148-155]. Potential solvent-accessible voids of 500.0?Å(3) occur in the crystal structure.

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