Crystal Structure of ?

Id4001669
Chemical name ?
a (Å)9.97550(10)
b (Å)9.97550(10)
c (Å)57.2943(9)
α (°)90
β (°)90
γ (°)120
V (Å3)4937.55(10)
Space groupR -3 c :H
Temperature (K)293
Rint0.0293