119Sn and 1H NMR evidence for the formation of chloro(trichlorostannato)rhodium hydrido anion on extraction of rhodium(III) chlorides into 4-methylpentan-2-one from dilute hydrochloric acid containing tin(II) chloride
Tin-119 Fourier-transform nuclear magnetic resonance study of rhodium–tin complexes formed in aqueous hydrochloric acid solutions of RhCl<sub>3</sub>and SnCl<sub>2</sub>
Rhodium–tin complexes, formed in aqueous hydrochloric acidsolutions of RhCl3 and SnCl2, have been investigated by 119Sn Fourier-transform n.m.r. spectroscopy. Satellite peaks due to the 117Sn isotope revealed fast intramolecular scrambling of the ligands. The redox process between rhodium(III) and tin(II) species to form a rhodium(I) complex with five tin(II) ligands was demonstrated at a molar ratio