Crystal Structure of ?

Id4000879
Chemical name ?
a (Å)7.09109(5)
b (Å)7.09109
c (Å)11.50958(10)
α (°)90.0
β (°)90.0
γ (°)120.0
V (Å3)501.206(6)
Space groupP 63 m c
Temperature (K)300