Morenosite (NiSO₄cdot7H₂O, H4₁₂)

Unit cell

Lattice constants

a = 6.706 Å, b = 11.796 Å, c = 11.949 Å; α = 90.00°, β = 90.00°, γ = 90.00°

Cell volume

945.2 ų

Atoms in the conventional cell

108 (H 56, Ni 4, O 44, S 4)

Formula units Z

4

Pearson symbol

oP108 — orthorhombic, primitive lattice, 108 atoms per conventional cell

Symmetry operations

4 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 108 atoms drawn above are these sites multiplied by all 4 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

A14BC11D_oP108_19_14a_a_11a_a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oP108, then the space-group number 19, then the Wyckoff letters occupied by each element in turn (H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; H: 4a; Ni: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; S: 4a). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Other compounds with this structure

MgSO₄cdot7H₂O (Epsomite), ZnSO₄cdot7H₂O (Gosalrite) <!--beginning with an

Note: H4₁₂, Morenosite.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A14BC11D_oP108_19_14a_a_11a_a-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.