Abstract: | New Fluorides of Copper. On CsCuF4] Due to powder diagrams, CsCuF4], the first diamagnetic fluoride (χMol = ?516·10?6 cm3/Mol) of trivalent copper, with planar coordination orange-coloured, crystallizes tetragonal, KBrF4]-type of structure with planar CuF4]-units (a = 5.8488(4) Å, c = 12.043(1) Å). We obtained CsCuF4] by high pressure fluorination (pF2 = 350 bar, 400°C, 7 h) of CsCuCl3 in autoclaves. |