Crystal Structure of ?

Id7002885
Chemical name ?
a (Å)20.3995(6)
b (Å)7.06565(9)
c (Å)5.45584(11)
α (°)90.00000
β (°)90.00000
γ (°)90.00000
V (Å3)786.38(3)
Space groupP n 21 a