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Li, X.4
Zhai, H.J.5
Wang, L.S.6
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6
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38349109959
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All manipulations were performed in a nitrogen-filled glovebox; 100 mg (2.56 mmol) of K (Alfa Aesar, 99.95, ampouled under Argon) and 400 mg (5.33 mmol) of As (Alfa Aesar, polycrystalline lump 99.99999, grinded before use) were placed in a 20 mL vial, and 5 mL of ethylenediamine (Aldrich, 99.5, purified by redistillation, packed under Ar) was added. The mixture was stirred overnight at room temperature. The red suspension was filtrated through an Acrodisc premium 25 mm syringe filter with GxF/0.2 μm pores, and the resulting transparent red solution was used for further reactions. Note: As and K metals did not completely dissolve; 50 mg (0.09 mmol) of As2Te 3 (Aldrich, 99, was added to 1 mL of the above solution. The mixture was stirred for 2 h at room temperature and then filtrated through a syringe filter. The obtained very dark red solution was carefully layered with 97 mg of 18-crown-6 Alfa Aesar, 99, dissolved in 3 mL of toluene. A few days later, re
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3 (Aldrich, 99%) was added to 1 mL of the above solution. The mixture was stirred for 2 h at room temperature and then filtrated through a syringe filter. The obtained very dark red solution was carefully layered with 97 mg of 18-crown-6 (Alfa Aesar, 99%) dissolved in 3 mL of toluene. A few days later, red crystals were formed on the sides of the reaction vessel.
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38349107378
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Cluster calculations were performed using the deMon DFT code using dzvp basis and a GGA functional. Solid-state calculations were performed using VASP
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Cluster calculations were performed using the deMon DFT code using dzvp basis and a GGA functional. Solid-state calculations were performed using VASP.
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