Crystal Structure of ?

Id1517477
Chemical name ?
a (Å)25.8735(12)
b (Å)25.8735
c (Å)6.8486(4)
α (°)90.0
β (°)90.0
γ (°)120.0
V (Å3)3970.5(3)
Space groupR -3 :H
Temperature (K)10