Crystal Structure of ?

Id1517479
Chemical name ?
a (Å)25.89776(33)
b (Å)25.89776
c (Å)6.27846(10)
α (°)90.0
β (°)90.0
γ (°)120.0
V (Å3)3646.77(7)
Space groupR -3 :H
Temperature (K)150