Crystal Structure of ?

Id2105207
Chemical name ?
a (Å)7.8179(5)
b (Å)7.8179(5)
c (Å)7.8179(5)
α (°)90.00000
β (°)90.00000
γ (°)90.00000
V (Å3)477.83(5)
Space groupF d -3 m :2
Temperature (K)923
Publication: Acta Crystallographica Section B (2012) 68, 4 356-363