Ru11Lu20, a New Intermetallic Compound with Eight- to Ten-Coordinate Ruthenium Atoms

Abstract

Abstract:The new intermetallic compound Ru 11 Lu 20 was obtained as black single crystals during an attempted comproportionation reaction of lutetium(III) chloride, LuCl 3 , with metallic lutetium in the presence of ruthenium metal at 950 °C. Ru 11 Lu 20 crystallizes with the trigonal space group R-3, Z = 6, a = 1255.1(1), c = 2973.0(4) pm, R 1 for all data: 0.0380. Ruthenium atoms center eight-, nine-and ten-vertex polyhedra of lutetium atoms which are connected in a complicated manner to a three-dimensional network.