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Cu₃[Fe(CN)₆]₂cdot xH₂O (J2₅)

Cubic · space group Fm-3m (No. 225) · Pearson cF96 · Strukturbericht J25 · mineral: prussian blue analog

Symmetry elements and Wyckoff positions (interactive)

Cu₃[Fe(CN)₆]₂cdot xH₂O (J2₅) in Fm-3m

Setting
Loading the group…
x = 0.10, y = 0.17, z = 0.08

Unit cell

Lattice constants
a = 10.120 Å, b = 10.120 Å, c = 10.120 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
1036.4 ų
Atoms in the conventional cell
96 (Cu 36, Fe 4, H 8, C 24, N 24)
Formula units Z
4
Pearson symbol
cF96 — cubic, face-centred lattice, 96 atoms per conventional cell
Symmetry operations
192 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
Cu2Cu4a40.00000.00000.0000
Fe4Fe4b40.50000.50000.5000
H5H8c80.25000.25000.2500
C1C24e240.70260.00000.0000
N6N24e240.81130.00000.0000
Cu3Cu32f320.66670.66670.6667

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 96 atoms drawn above are these sites multiplied by all 192 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

A6B9CD2E6_cF96_225_e_af_b_c_e-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol cF96, then the space-group number 225, then the Wyckoff letters occupied by each element in turn (Cu: 4a; Fe: 4b; H: 8c; C: 24e; N: 24e; Cu: 32f). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

Cd₃[Co(CN)₆]₂, Co₃[Co(CN)₆]₂, Cu₃[Fe(CN)₆]₂, Fe₃[Fe(CN)₆]₂, Td₃[Fe(CN)₆]₂, Zn₃[Fe(CN)₆]₂ <!--beginning with an

Note: J2_5, Prussian Blue Analog.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A6B9CD2E6_cF96_225_e_af_b_c_e-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.

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