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1H NMR spectra of (a) [R4N+]2[IrX62–] in toluene-d8 obtained after mixing the organic (toluene-d8) layer of TOAB (2.0 mmol) and the aqueous (D2O) layer of K2IrCl6 (0.4 mmol), (b) 1-dodecanthiol (0.8 mmol) added to a, (c) 1-dodecanthiol (1.6 mmol) added to a, (d) NaBH4 (4.0 mmol) added to c, (e) S-dodecylthiosulfate (0.8 mmol) added to a, and (f) Ir nanoparticle in CDCl3 after purification. The multiplet resonance at δ 2.09 ppm is due to the presence of toluene solvent impurity.
