Solvent-driven reversible transformation between electrically neutral thiolate protected Ag25 and Ag26 clusters

Yu-Ling Tan, Ling Yang, Tian-Chen Yu, Hong Yu, Xin-Yao Wang, Ying-Lin Song, Zheng Niu, Jian-Ping Lang

Two atom-precise silver nanoclusters [Ag25Cl2(Tab)14(PhCOO)11(DMF)4](PF6)12 (Ag25, DMF=N,N-dimethylformamide) and [Ag26Cl2(Tab)14(PhCOO)13(DMAc)4](PF6)11(Ag26, DMAc=N,N-dimethylacetamide) were synthesized based on the electrically neutral thiolate protective ligand, 4-(trimethylammonio)benzenethiolate (Tab). The weak Ag-S interaction in Tab-protected silver nanoclusters allows to insert or leave a single silver atom in the Ag-S skeleton through solvent-trigger core fragmentation and re-arrangement, thereby realizing the reversible conversion of Ag25 and Ag26 for the first time.

电中性硫醇盐保护的Ag 25和Ag 26团簇之间的溶剂驱动可逆转变

两个原子精确的银纳米簇[Ag 25 Cl 2（Tab）14（PhCOO）11（DMF）4 ]（PF 6）12（Ag 25，DMF = N，N-二甲基甲酰胺）和[Ag 26 Cl 2（Tab）14（PhCOO）13（DMAc）4 ]（PF 6）11 （Ag 26，DMAc = N，N-β-二甲基乙酰胺）是基于电中性硫醇盐保护性配体4-（三甲基铵）苯硫醇盐（Tab）合成的。在选项卡保护的银纳米簇弱的Ag-S相互作用允许插入或离开单个银原子在通过溶剂触发芯分段和重新布置所述Ag-S骨架，由此实现的可逆转化的Ag 25和银26为第一次。

Tan2021_Article_Solvent-drivenReversibleTransf.pdf