α-Na₂PrO₃ Na₂O₃Pr

Unit cell

Lattice constants

a = 5.965 Å, b = 10.314 Å, c = 11.749 Å; α = 90.00°, β = 110.09°, γ = 90.00°

Cell volume

678.8 ų

Atoms in the conventional cell

48 (Na 16, Pr 8, O 24)

Formula units Z

8

Pearson symbol

mC48 — monoclinic, base-centred lattice, 48 atoms per conventional cell

Symmetry operations

8 per cell

Crystallographic sites

The multiplicity and the Wyckoff letter say how many copies of the site the group makes in one cell and on which kind of symmetry element the site sits; the 48 atoms drawn above are these sites multiplied by all 8 operations. Press Wyckoff under Colour to see the sites, and tick a symmetry element on the left to see which atoms lie on it.

How to read the label

A2B3C_mC48_15_aef_3f_2e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mC48, then the space-group number 15, then the Wyckoff letters occupied by each element in turn (Na: 4a; Na: 4e; Pr: 4e; Pr: 4e; Na: 8f; O: 8f; O: 8f; O: 8f). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

Li₂MnO₃, Li₂PbO₃, Li₂RuO₃, Li₂SnO₃, Li₂TiO₃, Na₂CeO₃, Na₂CrO₃, Na₂IrO₃, Na₂RuO₃, Na₂PdO₃, Na₂PrO₃, Na₂PtO₃, Na₂SnO₃, Na₂TbO₃, Na₂ZrO₃ <!--beginning with an

Note: α-Na₂PrO₃.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A2B3C_mC48_15_aef_3f_2e-001 (M. J. Mehl et al., Comput. Mater. Sci. 136, S1 (2017); D. Hicks et al., ibid. 161, S1 (2019) and 199, 110450 (2021); S. Eckert et al., ibid. 240, 112988 (2024)). Symmetry elements, Wyckoff assignment and the diagram are computed on this page from the group operations.