Crystal Structure of ?

Id7215447
Chemical name ?
a (Å)8.99810(24)
b (Å)8.05617(21)
c (Å)11.76780(26)
α (°)90.0
β (°)90.0
γ (°)90.0
V (Å3)853.05(4)
Space groupC m c 21
Temperature (K)298