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2 protocols using au2o3

1

Synthesis of Metal Halide Complexes

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All reactions and sample handling were carried out under dried argon atmosphere using standard Schlenk techniques or glove boxes. Reactions were performed in Schlenk flasks and glass ampoules. The starting materials AgCl (99.9%, Alfa Aesar), Ag2O (≥99%, Alfa Aesar), AuCl (99.9%, Sigma Aldrich), Au2O3 (99%, abcr), CuCl (≥99%, Alfa Aesar), and HgO (99%, Alfa Aesar) were used as received. The ionic liquid [BMIm]Cl (99.9%, IoLiTec) was dried at 130 °C at reduced pressure (1 × 10−3 mbar) for 3 days. All compounds were handled and stored in argon-filled glove boxes (MBraun Unilab, c(O2, H2O) < 0.1 ppm).
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2

Synthesis of Metal Nanoparticles

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All chemicals were purchased from commercial suppliers and used without further purification: Au2O3 (99 %, ABCR), Ag2O (99 %, Sigma-Aldrich), HAuCl4·3H2O (Sigma-Aldrich), AgNO3 (99 %, Alfa Aesar), oleylamine (technical grade, 70 %, Sigma), octylamine (for synthesis, Merck), dodecylamine (98 %, Aldrich), hexadecylamine (98 %, Aldrich), octadecylamine (98 %, Alfa Aesar), triphenylphosphine (95 %, Fluka) and 1-undecanthiol (98 %, Aldrich). The solvents were of analytical grade quality and degassed by freeze-pomp-thaw technique prior to use: toluene, chlorobenzene, chloroform (ChemPur), decane, tetradecane (Aldrich) and 1,2-dichlorobenzene (ROTH). Silicon wafers were received from ITME (Warsaw). TEM grids were purchased from Ted Pella Inc.
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