Figure 4
1H NMR spectra following the Cl replacement by DMSO-d6 in the salt [Au(phen)Cl2]PF6, where phen = 1,10-phenanthroline. (Top) Spectrum obtained from a freshly dissolved sample and (bottom) 72 h after dissolution. Two populations were identified, [Au(phen)Cl2]+ (symbolized by a black square) and a chloride replacement product, most likely [Au(phen)(dmso-d6)2]3+ (symbolized by a black dot). |