Crystal Structure of ?

Id7228555
Chemical name ?
a (Å)20.8317(18)
b (Å)9.8784(9)
c (Å)20.8194(17)
α (°)90
β (°)105.837(4)
γ (°)90
V (Å3)4121.7(6)
Space groupC 1 2/c 1
Temperature (K)100
Rint0.0676