Abstract
Single-phase Pr2CBr was prepared by heating a mixture of PrBr3, Pr and C (1 : 5:3) to 1140 °C for 18 d. The crystal structure was investigated by X-ray single crystal diffraction (space group P63/mmc, a = 3.8071(3), c = 14.7787(12) Å). In the structure the Pr atoms form C-centered octahedra condensed into Pr2C sheets via common edges; these sheets are separated by the Br atoms which are in a trigonal prismatic environment of Pr atoms. Pr2CBr is a black shiny compound with metallic conductivity. It is a ferromagnet with Tc = 13.8(5) K.
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