Crystal Structure of ?

Id4506226
Chemical name ?
a (Å)21.3393(6)
b (Å)7.29604(16)
c (Å)3.77733(8)
α (°)90.0
β (°)94.8240(12)
γ (°)90.0
V (Å3)586.02(2)
Space groupP 1 21/a 1