Kim Dongwon, Han Jihun, Jung Ok-Sang, Lee Young-A
Department of Chemistry, Pusan National University Busan 46241 Republic of Korea
Department of Chemistry, Jeonbuk National University Jeonju 54896 Korea
RSC Adv. 2022 Sep 5;12(39):25118-25122. doi: 10.1039/d2ra04270c.
Formation of the unexpected hexafluorosilicate (SiF ) anion during crystallization self-assembly in glassware is scrutinized. Self-assembly of M(BF) (M = Cu and Zn) with tridentate N-donors (L) in a mixture solvent including methanol in a glass vessel gives rise to an SiF -encapsulated CuL double-decker cage and a ZnL cage, respectively. Induced reaction of CuX (X = PF and SbF ) instead of Cu(BF), with the tridentate ligands, produces the same species. The formation time of SiF is in the order of anions BF < PF < SbF under the given reaction conditions. The SiF anion, acting as a cage template or cage-to-cage bridge, seems to be formed from the reaction of polyatomic anions containing fluoride with the SiO of the surface of the glass vessel.
对玻璃器皿中结晶自组装过程中意外形成的六氟硅酸根（SiF ）阴离子进行了详细研究。在玻璃容器中，M(BF)（M = Cu和Zn）与三齿氮供体（L）在含有甲醇的混合溶剂中自组装，分别生成了一个封装有SiF 的CuL双层笼和一个ZnL笼。用CuX（X = PF 和SbF ）代替Cu(BF)与三齿配体发生诱导反应，也会生成相同的物种。在给定反应条件下，SiF 的形成时间顺序为阴离子BF ＜PF ＜SbF 。SiF 阴离子作为笼模板或笼间桥，似乎是由含氟多原子阴离子与玻璃容器表面的SiO 反应形成的。
