八甲基二-μ(3)-氧化双-(μ(2)-噻吩-3-乙酸根-κO:O')(噻吩-3-乙酸根-κO)四锡(IV)
Octa-methyldi-μ(3)-oxido-bis-(μ(2)-thio-phene-3-acetato-κO:O')(thio-phene-3-acetato-κO)tetra-tin(IV).
作者信息
Danish Muhammad, Tahir M Nawaz, Ahmad Nazir, Raza Abdul Rauf, Ibrahim Muhammad
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 30;65(Pt 5):m609-10. doi: 10.1107/S1600536809015475.
In the centrosymmetric title compound, [Sn(4)(CH(3))(8)(C(6)H(5)O(2)S)(4)O(2)], the central four-membered planar ring (Sn(2)O(2)) makes dihedral angles of 66.28 (12) and 77.43 (11)° with the heterocyclic rings of the bridging and monodentate ligands, respectively. One Sn(IV) atom adopts a distorted SnO(3)C(2) trigonal-bipyramidal geometry, with both C atoms in equatorial sites and the other a grossly distorted SnO(4)C(2) octa-hedral or irregular arrangement. In the crystal, the mol-ecules are connected into pillar-like polymeric units making R(2) (2)(12) ring motifs due to inter-molecular C-H⋯O inter-actions. C-H⋯π inter-actions are also present. The O atoms of the chelating ligands and the S atom of the monodentate ligand are disordered over two sets of sites in a 0.65 (6):0.35 (6) ratio.
在中心对称的标题化合物[Sn₄(CH₃)₈(C₆H₅O₂S)₄O₂]中，中心的四元平面环（Sn₂O₂）分别与桥连配体和单齿配体的杂环形成66.28 (12)°和77.43 (11)°的二面角。一个Sn(IV)原子采用扭曲的SnO₃C₂三角双锥几何构型，两个C原子位于赤道位置，另一个则是严重扭曲的SnO₄C₂八面体或不规则排列。在晶体中，分子通过分子间C-H⋯O相互作用连接成柱状聚合物单元，形成R₂²(12)环模式。还存在C-H⋯π相互作用。螯合配体的O原子和单齿配体的S原子在两组位置上无序，比例为0.65 (6):0.35 (6)。
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