Tungsten Diboride: Preparation and Structure

A new tungsten boride has been prepared and has been assigned the formula WB 2 . The assignment is based on comparison of the x-ray diffraction data of this boride with those of diborides of the AlB 2 type structure. Values of a 0 = 3.02 and c 0 = 3.05 were calculated for a hexagonal unit cell.