The low temperature syntheses of AuTe₂ and Ag₂Te starting from the elements were investigated in the ionic liquids (ILs) [BMIm]X and [P₆₆₆₁₄]Z ([BMIm]⁺=1‐butyl‐3‐methylimidazolium; X = Cl, [HSO₄]⁻, [P₆₆₆₁₄]⁺ = trihexyltetradecylphosphonium; Z = Cl⁻, Br⁻, dicyanamide [DCA]⁻, bis(trifluoromethylsulfonyl)imide [NTf₂]⁻, decanoate [dec]⁻, acetate [OAc]⁻, bis(2,4,4‐trimethylpentyl)phosphinate [BTMP]⁻). Powder X‐ray diffraction, scanning electron microscopy, and energy‐dispersive X‐ray spectroscopy revealed that [P₆₆₆₁₄]Cl is the most promising candidate for the single phase synthesis of AuTe₂ at 200 °C. Ag₂Te was obtained using the same ILs by reducing the temperature in the flask to 60 °C. Even at room temperature, quantitative yield was achieved by using either 2 mol % of [P₆₆₆₁₄]Cl in dichloromethane or a planetary ball mill. Diffusion experiments, ³¹P and ¹²⁵Te‐NMR, and mass spectroscopy revealed one of the reaction mechanisms at 60 °C. Catalytic amounts of alkylphosphanes in commercial [P₆₆₆₁₄]Cl activate tellurium and form soluble phosphane tellurides, which react on the metal surface to solid telluride and the initial phosphane. In addition, a convenient method for the purification of [P₆₆₆₁₄]Cl was developed.

中文翻译：

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碲的低温活化和在离子液体中资源高效合成 AuTe2 和 Ag2Te

在离子液体 (ILs) [BMIm] X和[P 66614 ] Z ₍ [BMIm] ₊ ⁼ _1-丁基-3-甲基咪唑; X  = Cl, [HSO ₄ ] ^- , [P ₆₆₆₁₄ ] ⁺  = 三己基十四烷基鏻; Z  = Cl ^- , Br ^- , 双氰胺 [DCA] ^- , 双(三氟甲基磺酰基)亚胺 [NTf ₂ ] ^- , 癸酸酯 [dec] ^- , 醋酸盐 [OAc ] ^-, 双(2,4,4-三甲基戊基)次膦酸盐[BTMP] ^- )。粉末 X 射线衍射、扫描电子显微镜和能量色散 X 射线光谱表明，[P ₆₆₆₁₄ ]Cl 是在 200 °C 下单相合成 AuTe ₂的最有希望的候选者。通过将烧瓶中的温度降低到 60 °C，使用相同的 IL 获得Ag _{2 Te。}即使在室温下，通过使用在二氯甲烷中的 2 mol % [P ₆₆₆₁₄ ]Cl 或行星式球磨机，也可以实现定量产率。扩散实验、³¹ P 和¹²⁵ Te-NMR 和质谱揭示了 60 °C 时的反应机制之一。商业中烷基膦的催化量 [P₆₆₆₁₄ ]Cl 活化碲并形成可溶性碲化膦，其在金属表面反应生成固体碲化物和初始的膦。此外，还开发了一种方便的纯化 [P ₆₆₆₁₄ ]Cl 的方法。