Citation: Elson, R.; Zachariasen, W.H.; Sellers, P.A.; Fried, S. (1950). The tetravalent and pentavalent states of protactinium. Journal of the American Chemical Society, 72, pp. 5791-5791.
Formula: O2 Pa
Chemical name: Pa O2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: O8 Pa4 (O2 Pa)
Multiplicity: 1
RCSR Symbol: flu
Coordination sequences: