Three Cationic, Nonporous Cu<sup>I</sup>-Coordination Polymers: Structural Investigation and Vapor Iodine Capture
作者:Elham Baladi、Valiollah Nobakht、Abbas Tarassoli、Davide M. Proserpio、Lucia Carlucci
DOI:10.1021/acs.cgd.8b01446
日期:2018.11.7
Three cationic nonporous copper(I) coordination polymers containing bis-pyrazolyl flexible ligands have been prepared and characterized, namely, [Cu(μ-bdb)1.5](PF6)}n (1), [Cu(μ-bpb)2](PF6)}n (2), and [Cu(μ-bpmb)2](PF6)}n (3) (bdb = 1,4-bis(3,5-dimethylpyrazolyl) methyl)benzene; bpb = 1,4-bis(pyrazolyl)butane; bpmb = 1,4-bis(pyrazolyl)methyl)benzene). All compounds were characterized by infrared
制备并表征了三种含双吡唑基柔性配体的阳离子无孔铜(I)配位聚合物,即[Cu(μ-bdb)1.5 ](PF 6)} n(1),[Cu(μ-bpb )2 ](PF 6)} n(2)和[Cu(μ-bpmb)2 ](PF 6)} n(3)(bdb = 1,4-双(3,5-二甲基吡唑基)甲基)苯; bpb = 1,4-双(吡唑基)丁烷; bpmb = 1,4-双(吡唑基)甲基)苯)。所有化合物均通过红外,粉末X射线衍射,元素和热分析以及单晶X射线衍射进行表征。化合物1具有甲基取代的吡唑基配体的分子,形成交替的环和带链,其中铜(I)中心在扭曲的三角平面几何结构中是三个配位的。在化合物2和3的铜(I)原子采取扭曲的四面体几何形状赋予二维片材结构具有4 4 - SQL拓扑。有趣的是,碘吸附实验表明2和3的无色晶体在存在碘蒸气的情况下保持不变,而三配位化合物1立即吸收碘并变黑。化合物1和2的阴离子交换行为