Zur Rutilverwandtschaft: Zur Kenntnis von LiSrFeF₆[1]/On the Knowledge of LiSrFeF₆

Abstract

<jats:p>Hitherto unknown LiSrFeF<jats:sub>6</jats:sub> was obtained by heating mixtures of binary fluorides [LiF + SrF<jats:sub>2</jats:sub> + FeF<jats:sub>3</jats:sub>; Li:Sr:Fe = 1:1:1] under argon [Au tubes, 500 °C, 2 d or 650 °C, 14d] as a colourless powder or colourless single crystals. LiSrFeF<jats:sub>6</jats:sub> crystallizes monoclinicly in P2<jats:sub>1</jats:sub>/c-C<jats:sup>5</jats:sup><jats:sub>2</jats:sub>h with a = 5,2972(4), b = 8,7989(8), c = 10,2257(7) Å, β = 92,212(8)°, Z = 4; d<jats:sub>rö</jats:sub> = 3,69 und d<jats:sub>pyk</jats:sub> = 3,66 g · cm<jats:sup>-3</jats:sup>, positions are given in the text, R = 9,1<jats:sub>6</jats:sub>% (R<jats:sub>w</jats:sub> = 6,8<jats:sub>3</jats:sub>%) for hkl (Mo-K<jats:sub>a</jats:sub>, 4-circle diffractometer data).</jats:p>