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Polymeric zinc ferrocenyl sulfonate as a molecular aspirator for the removal of toxic metal ions

机译:聚合二茂铁磺酸锌作为分子抽吸器,用于去除有毒金属离子

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摘要

A porous bilayered open coordination polymer [Zn(4,4'-bpy)(2)-(FcphSO(3))(2)](n) (1; FcphSO(3)Na = m-ferrocenyl benzene sulfonate), has been assembled from Zn(NO3)(2), m-ferrocenyl benzenesulfonate. and the bridging ligand 4,4'-bipyridine (4,4'-bpy). Ion-exchange induced products [Cd0.6Zn0.4-(4,4'-bpy)(2)(FcphSO(3))(2)](n) (2), [Zn0.75Pb0.25(4,4'-bpy)(2)(FcphSO(3))(2)](n) (3), and [Cu0.5Zn0.5(4,4'-bpy)(2)(FcphSO(3))(2)](n) (4) could be obtained directly by suspending a big single crystal of I into concentrated solutions of Cd(NO3)(2), Pb(NO3)(2), and Cu(NO3)(2), respectively. Most importantly, the big single crystal of I could be partly regenerated after immersion into concentrated aqueous solutions of Zn(NO3)(2). On the other hand, powdered 1 could also be used as a metal ion adsorbent because of the well-defined pore size and pore shape. Ion exchange takes place along with the process of ion sorption. The big single crystal of I removes harmful metal ions by means of ion exchange, whereas powdered 1 removes toxic metal ions mainly through ion sorption. Also, compound 1 could be employed as a multi-ion analysis fluorescent probe to detect dangerous metal ions, such as Pb2+ Cd2+ Ag+, and Cu2+. The compounds described in this study may have potential applications in the design of new molecular devices.
机译:多孔双层开放配位聚合物[Zn(4,4'-bpy)(2)-(FcphSO(3))(2)](n)(1; FcphSO(3)Na =间二茂铁基苯磺酸盐)具有由二茂铁基苯磺酸锌(NO3)(2)组装而成。和桥接配体4,4'-联吡啶(4,4'-bpy)。离子交换诱导产物[Cd0.6Zn0.4-(4,4'-bpy)(2)(FcphSO(3))(2)](n)(2),[Zn0.75Pb0.25(4,4) '-bpy)(2)(FcphSO(3))(2)](n)(3)和[Cu0.5Zn0.5(4,4'-bpy)(2)(FcphSO(3))(2 )](n)(4)可以通过将I的大单晶分别悬浮在Cd(NO3)(2),Pb(NO3)(2)和Cu(NO3)(2)的浓溶液中直接获得。最重要的是,浸入Zn(NO3)(2)的浓水溶液后,I的大单晶可以部分再生。另一方面,由于明确定义的孔尺寸和孔形状,粉状的1也可以用作金属离子吸附剂。离子交换与离子吸附过程一起发生。 I的大单晶通过离子交换除去有害的金属离子,而粉末状的1主要通过离子吸附除去有毒的金属离子。而且,化合物1可用作多离子分析荧光探针,以检测危险的金属离子,例如Pb2 + Cd2 + Ag +和Cu2 +。本研究中描述的化合物可能在新分子装置的设计中具有潜在的应用。

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