Crystal Structure of ?

Id1501696
Chemical name ?
a (Å)5.05111(7)
b (Å)5.05111
c (Å)9.99493(24)
α (°)90.0
β (°)90.0
γ (°)90.0
V (Å3)255.008(7)
Space groupP 4/n m m :2
Publication: The journal of physical chemistry. B (2011) 115, 17 4887-4899