Crystal Structure of ?

Id1513808
Chemical name ?
a (Å)12.41090(7)
b (Å)12.41090(7)
c (Å)12.99059(11)
α (°)90
β (°)90
γ (°)120
V (Å3)1732.87(2)
Space groupR -3 :H
Temperature (K)293