Lutetium(III) oxide iodide

Single crystals of lutetium oxide iodide, LuOI, were obtained as a by-product of the reaction of lutetium metal, rhenium powder and lutetium triiodide, LuI3, in a sealed tantalum container. LuOI crystallizes in the tetra­gonal PbFCl-type of structure (matlockite), where Lu, O and I are situated on positions with 4mm, \overline{4}m2 and 4mm symmetry, respectively.