Crystal Structure of ?

Id7055082
Chemical name ?
a (Å)18.766(3)
b (Å)18.766(3)
c (Å)24.688(2)
α (°)90
β (°)90
γ (°)120
V (Å3)7529.4(18)
Space groupR -3 :H
Temperature (K)120
Rint0.0726