Crystal Structure of ?

Id4330457
Chemical name ?
a (Å)4.06894(5)
b (Å)4.06894(5)
c (Å)17.8760(2)
α (°)90.00000
β (°)90.00000
γ (°)90.00000
V (Å3)295.960(6)
Space groupI 4/m m m
Temperature (K)298(2)