Tang Chunying, Yao Jie, Li Yueying, Xia Zhuoran, Liu Jianbiao, Zhang Chun-Yang
College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, People's Republic of China.
Inorg Chem. 2020 Oct 5;59(19):13962-13971. doi: 10.1021/acs.inorgchem.0c01623. Epub 2020 Sep 15.
We synthesized and characterized three types of isostructural iodoargentates, [TM(phen)]AgI·3DMF (TM = Co (), Ni (), Zn ()), [TM(phen)]AgI·DMF (TM = Co (), Ni (), Zn ()), and [TM(phen)]AgI·7DMF (TM = Co (), Ni (), Zn ()) (phen = 1,10-phenanthroline, DMF = dimethylformamide) using transition-metal (TM) complexes as the structure-directing agents. Compounds - and compounds - feature zero-dimensional anionic [AgI] and [AgI] clusters, respectively. All of the [TM(phen)] cations in compounds - are arranged into a two-dimensional (2D) (6,3) net layer. Interestingly, compounds - are kinetically unstable in the mother solution, and they can be converted to compounds - via irreversible single-crystal to single-crystal transformation processes, respectively, with distinct changes in the crystal morphology and structure. Compounds - feature one-dimensional (1D) zigzag chains constructed from [AgI] units. The UV-vis diffuse reflectance measurements demonstrate that compounds - possess the characteristics of semiconductors with band gaps of 2.58-2.71 eV and visible-light-irradiation-induced photocatalytic activities. Especially, compound possesses higher photocatalytic degradation activity toward crystal violet (CV) and rhodamine B (RhB) in comparison to P25 under identical conditions. Moreover, the mechanism study reveals that the TM complex cations make a great contribution to the photocatalytic activity.
我们以过渡金属（TM）配合物为结构导向剂，合成并表征了三种类型的同构碘银酸盐，[TM（邻菲罗啉）]AgI·3二甲基甲酰胺（TM = 钴（）、镍（）、锌（））、[TM（邻菲罗啉）]AgI·二甲基甲酰胺（TM = 钴（）、镍（）、锌（））和[TM（邻菲罗啉）]AgI·7二甲基甲酰胺（TM = 钴（）、镍（）、锌（））（邻菲罗啉 = 1,10 - 菲咯啉，二甲基甲酰胺 = 二甲基甲酰胺）。化合物 - 和化合物 - 分别具有零维阴离子[AgI]和[AgI]簇。化合物 - 中的所有[TM（邻菲罗啉）]阳离子排列成二维（2D）（6,3）网状层。有趣的是，化合物 - 在母液中动力学不稳定，它们可以分别通过不可逆的单晶到单晶转变过程转化为化合物 - ，晶体形态和结构有明显变化。化合物 - 具有由[AgI]单元构成的一维（1D）之字形链。紫外 - 可见漫反射测量表明，化合物 - 具有半导体特性，带隙为2.58 - 2.71 eV，且具有可见光照射诱导的光催化活性。特别是，在相同条件下，化合物 对结晶紫（CV）和罗丹明B（RhB）的光催化降解活性比P25更高。此外，机理研究表明，TM配合物阳离子对光催化活性有很大贡献。
