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聚[双(μ(3)-乙酸根-κO,O':O:O')双(μ(2)-乙酸根-κO,O':O)(μ(2)-2,5-二甲基苯-1,4-二醇-κO:O')二铅(II)]

Poly[bis-(μ(3)-acetato-κO,O':O:O')bis-(μ(2)-acetato-κO,O':O)(μ(2)-2,5-dimethyl-benzene-1,4-diol-κO:O')dilead(II)].

作者信息

Lyczko Krzysztof, Bak Joanna

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2008 Sep 27;64(Pt 10):m1341-2. doi: 10.1107/S1600536808030535.

Abstract

The title compound, Pb(2)(C(2)H(3)O(2))(4)(C(8)H(10)O(2)), has a polymeric structure, with acetatolead(II) chains and 2,5-dimethyl-benzene-1,4-diol mol-ecules forming bridges between two Pb(II) ions from neighbouring chains. Each Pb(II) centre is surrounded by eight O atoms; four belong to bidentate acetate ions, three to neighbouring bridging acetate groups and one to the 2,5-dimethyl-benzene-1,4-diol mol-ecule. The Pb(II) ions are chelated symmetrically and asymmetrically by acetate ligands. The coordination environment of the Pb(II) ion can be described as a hemidirected Pb(II)O(6) core with the empty space around the metal ion filled by the stereochemically active 6s(2) electron pair and two longer Pb-O contacts. The Pb-O distances are in the range of 2.355 (3)-2.994 (3) Å. Additionally, the crystal structure is stabilized by O-H⋯O hydrogen bonds.

摘要

标题化合物[Pb₂(C₂H₃O₂)₄(C₈H₁₀O₂)]ₙ具有聚合结构,醋酸铅(II)链和2,5 - 二甲基苯 - 1,4 - 二醇分子在相邻链的两个Pb(II)离子之间形成桥连。每个Pb(II)中心被八个O原子包围;四个属于双齿醋酸根离子,三个属于相邻的桥连醋酸根基团,一个属于2,5 - 二甲基苯 - 1,4 - 二醇分子。Pb(II)离子被醋酸根配体对称和不对称地螯合。Pb(II)离子的配位环境可描述为一个半定向的Pb(II)O₆核心,金属离子周围的空穴由立体化学活性的6s²电子对和两个较长的Pb - O接触填充。Pb - O距离在2.355(3) - 2.994(3) Å范围内。此外,晶体结构通过O - H⋯O氢键得以稳定。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ff81/2959230/184b4206cf21/e-64-m1341-fig1.jpg

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