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Triclinic form of bis-{di-?-hydroxidobis[fac-aqua-tribromido-tin(IV)]} hepta-hydrate.

ABSTRACT: The asymmetric unit of the title hydrate, 2[Sn(H(2)O)(2)(OH)(2)Br(6)]·7H(2)O, comprises two [Br(3)(H(2)O)Sn(?-OH)(2)SnBr(3)(OH(2))] units, but three independent mol-ecules as two of these are disposed about inversion centres, and seven water mol-ecules. In common with the monoclinic polymorph [Howie et al. (2005 ?). Inorg. Chim. Acta, 358, 3283-3286], each of the dinuclear species features a central Sn(2)O(2) core, distorted octa-hedral Sn atom geometries defined by a Br(3)O(3) donor set, and an anti-disposition of the coordinated water mol-ecules. In the crystal, O(h)-H?O(w), O(a)-H?O(w), O(w)-H?O(w), and O(w)-H?Br (h = hydroxyl, a = aqua, w = water) hydrogen-bonding inter-actions generate a three-dimensional network.

SUBMITTER: de Lima GM

PROVIDER: S-EPMC2983747 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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Triclinic form of bis-{di-μ-hydroxidobis[fac-aqua-tribromido-tin(IV)]} hepta-hydrate.

de Lima Geraldo M GM Howie R Alan RA Tiekink Edward R T ER Wardell James L JL Wardell Solange M S V SM

Acta crystallographica. Section E, Structure reports online 20100220 Pt 3

The asymmetric unit of the title hydrate, 2[Sn(H(2)O)(2)(OH)(2)Br(6)]·7H(2)O, comprises two [Br(3)(H(2)O)Sn(μ-OH)(2)SnBr(3)(OH(2))] units, but three independent mol-ecules as two of these are disposed about inversion centres, and seven water mol-ecules. In common with the monoclinic polymorph [Howie et al. (2005 ▶). Inorg. Chim. Acta, 358, 3283-3286], each of the dinuclear species features a central Sn(2)O(2) core, distorted octa-hedral Sn atom geometries defined by a Br(3)O(3) donor set, and an ...[more]

PMID: 21580197

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