Fig. 2. Time-dependent ESI-MS spectra for the reaction solutions. (a) Negative ion mode ESI-MS data in the m/z range of 4000–6500 for the reaction solutions of 9 mg {Ag(SiPr)}n, 22 mg CF3COOAg, and 50 μL CF3COOH in the solvent mixture (iPrOH : DMF = 3 : 1) at 80 °C. (b) Intensity-based curves of {Ag25S}, {Ag23}, {Ag22}, {Ag21}, and {Ag70S4}. {Ag70S4} = [Ag70S4(SiPr)24(CF3COO)20]2−.
