Two luminescent alkali-silver heterometallic sulfonates

Systematic survey on the reactions of silver nitrate with H3Ssal ligand (H3Ssal = 5-sulfo-salicylic acid) accompanying with different alkali metal ions under alkali conditions leads to two novel luminescent alkali-silver heterometallic sulfonates, [KAg(HSsal)(H2O)3]n (1) with a 3-D structure constructed by [K2O10] binuclear units linking 1-D∞1[Ag2(HSsal)2] double chains, [NaAg(HSsal)(H2O)3]n (2) with a 3-D structure constructed by the [Ag2(HSsal)2] dimers connecting 1-D∞1[NaO6] chains, and also reveals the coordination strength of the alkali metal cations and Ag+ towards the sulfonate groups with K+ > Na+ > Ag+ > Li+ order. The two compounds show intense blue emissions in both solid state and water solution.

Systematic survey on the reactions of silver nitrate with H3Ssal ligand accompanying with different alkali metal ions under alkali conditions leads to two novel luminescent alkali-silver heterometallic sulfonates, and also reveals the coordination strength of the alkali metal cations and Ag+ towards the sulfonate groups with K+ > Na+ > Ag+ > Li+ order.Figure optionsDownload as PowerPoint slide