College of Chemistry and Chemical Engineering, Qingdao University, Shandong, 266071, P.R. China.
Chem Asian J. 2019 Mar 1;14(5):640-646. doi: 10.1002/asia.201801920. Epub 2019 Feb 5.
By using solvated metal cations as structure-directing agents, three new iodoargentates, namely, [Fe(DMSO) ][Ag I ]⋅DMSO (1), [Fe(H O) ][Ag I ] (2) and [Cd(DMSO) ][Ag I ] (3) (DMSO=dimethyl sulfoxide) have been solvothermally prepared and structurally characterized. The structures of compounds 1 and 2 can be described as 1D chains constructed from the linkage of [Ag I ] and [Ag I ] building units, respectively. For compound 3, the [Ag I ] building blocks are directly interconnected to form a 2D [Ag I ] layer, which are further interconnected via intermolecular forces to generate a 3D supramolecular framework with 1D large channels occupied by [Cd(DMSO) ] cations. Interestingly, compounds 1-3 exhibit an ion-exchange behavior for the adsorption of a specific dye (methylene blue, MB). Moreover, photocatalytic experiments indicate that these iodoargentates can be considered as promising photocatalysts for the degradation of organic dye pollutants.
通过使用溶剂化金属阳离子作为结构导向剂，成功合成了三种新型碘银酸盐，分别为[Fe(DMSO) ][Ag I ]⋅DMSO（1）、[Fe(H 2 O) ][Ag I ]（2）和[Cd(DMSO) ][Ag I ]（3）（DMSO=二甲基亚砜）。通过溶剂热法合成并对其结构进行了表征。化合物 1 和 2 的结构可描述为分别由[Ag I ]和[Ag I ]连接单元构成的 1D 链。对于化合物 3，[Ag I ]构建块直接相互连接形成二维[Ag I ]层，通过分子间作用力进一步连接，生成具有一维大孔道的 3D 超分子框架，孔道中填充有[Cd(DMSO) ]阳离子。有趣的是，化合物 1-3 表现出离子交换行为，可吸附特定染料（亚甲基蓝，MB）。此外，光催化实验表明，这些碘银酸盐可作为降解有机染料污染物的潜在光催化剂。
