Crystal Structure of ?

Id2100651
Chemical name ?
a (Å)2.9036(17)
b (Å)2.9036
c (Å)2.828(3)
α (°)90.0
β (°)90.0
γ (°)120.0
V (Å3)20.646(14)
Space groupP -6 m 2
Publication: Acta Crystallographica, Section B (2006) 62, 6 987-992