title: Synthesis of the clathrate-I phase Ba(8-x)Si46 via redox reactions.
abstract: The clathrate-I phase Ba(8-x)Si(46) (space group Pm3̅n) was synthesized by oxidation of Ba(4)Li(2)Si(6) with gaseous HCl. Microcrystalline powders of the clathrate phase were obtained within a few minutes. The reaction temperature and the pressure of HCl were optimized to achieve good-quality crystalline products with a composition range of 1.3 < x < 1.9. The new preparation route presented here provides an alternative to the high-pressure synthesis applied so far.
authors.affiliation: Max-Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liang
authors.forename: Bodo
authors.initials: B
authors.lastname: Böhme
authors.forename: Marianne
authors.initials: M
authors.lastname: Reibold
authors.forename: Walter
authors.initials: W
authors.lastname: Schnelle
authors.forename: Ulrich
authors.initials: U
authors.lastname: Schwarz
authors.forename: Michael
authors.initials: M
authors.lastname: Baitinger
authors.forename: Hannes
authors.initials: H
authors.lastname: Lichte
authors.forename: Yuri
authors.initials: Y
authors.lastname: Grin