Wang Zhiguo, Bian Qingquan, Guo Ying
Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang 621000, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2013 Jun 22;69(Pt 7):m411. doi: 10.1107/S1600536813016875. eCollection 2013.
The asymmetric unit of the title coordination complex, [Ag2Br2(C5H8N2)2] n , comprises a monodentate 1-ethyl-imida-zole ligand, an Ag(+) cation and a μ3-bridging Br(-) anion, giving a distorted tetra-hedral AgNBr3 stereochemistry about the Ag(+) cation [Ag-N = 2.247 (2) Å and Ag-Br = 2.7372 (4)-2.7523 (4) Å]. Two bridging bromide anions generate the dimeric [Ag2Br2(C5H8N)2] repeat unit [Ag⋯Ag = 3.0028 (5) Å], while a third Br(-) anion links the units through corner sharing in an inversion-related Ag2Br2 association [Ag⋯Ag = 3.0407 (4) Å], generating a one-dimensional ribbon step-polymer structure, extending along the c axis.
标题配位络合物[Ag₂Br₂(C₅H₈N₂)₂]ₙ的不对称单元包含一个单齿1-乙基咪唑配体、一个Ag⁺阳离子和一个μ₃-桥连Br⁻阴离子，在Ag⁺阳离子周围形成扭曲的四面体AgNBr₃立体化学结构[Ag-N = 2.247 (2) Å，Ag-Br = 2.7372 (4)-2.7523 (4) Å]。两个桥连溴阴离子生成二聚体[Ag₂Br₂(C₅H₈N)₂]重复单元[Ag⋯Ag = 3.0028 (5) Å]，而第三个Br⁻阴离子通过在一个与反演相关的Ag₂Br₂缔合中共享角连接这些单元[Ag⋯Ag = 3.0407 (4) Å]，形成沿c轴延伸的一维带状阶梯聚合物结构。
