BariumI 1500 DOI: 10.1002/chin.201130009

Synthesis of the Clathrate-I Phase Ba8-xSi46 via Redox Reactions. — Microcrystal-line powders of the title clathrate phase (1.3 < x < 1.9, space group Pm3n) are synthe-sized within a few minutes by oxidation of Ba4Li2Si6 with gaseous HCl obtained from NH4Cl (two-zone furnace: 210 and 400 °C, 6.67 mbar HCl, single-zone furnace: 500 °C, 15 min). The preparation route provides an alternative to the high-pressure syn-thesis applied so far. — (LIANG, Y.; BOEHME, B.; REIBOLD, M.; SCHNELLE, W.; SCHWARZ, U.; BAITINGER, M.; LICHTE, H.; GRIN*, Y.; Inorg. Chem. 50 (2011) 10, 4523-4528, http://dx.doi.org/10.1021/ic2001859 ; MPI Chem. Phys. fester Stoffe, D-01187 Dresden, Germany; Eng.) — W. Pewestorf

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