Erste Amidosulfate des Platins: Synthese und Kristallstruktur von K₂[PtCl₂(NH₂SO₃)₂] und K₂[PtCl₄(NH₂SO₃)₂]

New metal extractants and super-acidic ionic liquids derived from sulfamic acid

“…1 For example, sulfamate complexes of Zn(II), Co(II), Ni(II) and rare-earth ions (La-Lu, Y) are bonded through the oxygen atom, while sulfamate complexes of Pt(II), Pt(IV), Cr(III), and Ru(III) are bonded through the nitrogen atom. 1,[14][15][16][17][18] The strong affinity for metal ions and the differences in coordination behaviour suggest that N-alkylated sulfamic acid derivatives (pK a E À2) 1 could be excellent extractants. However, to the best of our knowledge, such extractants have not been reported yet.…”