On High Pressure Synthesis in Inorganic Solid State Fluorine Chemistry

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Abstract
Results of high pressure fluorination (300–3000 bar F2) are given and discussed, e.g. fluorides of CrIV, MnIV, NiIV, CuIV, PtIV, PrIV, NdIV(?), DyIV(?) and RhV, AuV. Newly prepared were BaNiF6 (monoclinic, a = 9.465 Å, b = 4.950 Å, c = 6.655 Å, β = 103.3O), Cs2‐xRbxNiF6, Rb2‐xKxNiF6 (K2PtCl6‐type) all carmine‐red; BaPrF6 (RbPaF6‐type, a = 8.027 Å, b = 11.593 Å, c = 5.617 Å), SrPrF6 (LaF6‐type, a = 7.090 Å, c = 7.290 Å), both colourless powders; Cs2KNdF7 (a = 9.605 Å), Cs2KDyF7 (a = 9.479 Å), both cubic, orange‐yellow powders, (NH4)3, ZrF7‐type; MnF4 (trig., a = 19.53 Å, c = 12.59 Å), ultramarine‐blue single crystals, O+2[MnF5]− (monoclinic, a = 17.55 Å, b = 8.43 Å, c = 9.10 Å, β = 101.8°), bright‐red single crystals, and yellow single crystals, O+2[AuF6]−, which decomposed even under F2 during X‐ray radiation.

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