Crystal Structure of ?

Id7212969
Chemical name ?
a (Å)20.403(6)
b (Å)10.402(3)
c (Å)6.824(2)
α (°)90
β (°)96.69(2)
γ (°)90
V (Å3)1438.4(7)
Space groupP 1 21/n 1
Temperature (K)173
Rint0.039