Physical and optical properties have been measured. Auger energy spectrum shows W:C= 1:1. the strongest diffraction lines in the powder photograph are 2.501(9), 1.874(10), 1.290(8), 1.233(8), 1.148(8), 1.015(9).

• 俄歇微探计分析W:C=1:1；X射线粉晶衍射强线值为2.；501(9)；1