七水合双-{二-μ-羟基双[面式-水-三溴化锡(IV)]}的三斜晶型
Triclinic form of bis-{di-μ-hydroxidobis[fac-aqua-tribromido-tin(IV)]} hepta-hydrate.
作者信息
de Lima Geraldo M, Howie R Alan, Tiekink Edward R T, Wardell James L, Wardell Solange M S V
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2010 Feb 20;66(Pt 3):i18-i19. doi: 10.1107/S1600536810006021.
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 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.
标题水合物2[Sn(H₂O)₂(OH)₂Br₆]·7H₂O的不对称单元包含两个[Br₃(H₂O)Sn(μ - OH)₂SnBr₃(OH₂)]单元，但有三个独立分子，因为其中两个位于对称中心，还有七个水分子。与单斜多晶型物[豪伊等人（2005年▶）。《无机化学学报》，358，3283 - 3286]相同，每个双核物种都有一个中心Sn₂O₂核、由Br₃O₃供体集定义的扭曲八面体Sn原子几何形状以及配位水分子的反式排列。在晶体中，O(h) - H⋯O(w)、O(a) - H⋯O(w)、O(w) - H⋯O(w)和O(w) - H⋯Br（h = 羟基，a = 水合，w = 水）氢键相互作用形成三维网络。
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