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Crystal Lab › Prototype structures › Orthorhombic

Anhydrous β-D-Glucose (C₆H₁₂O₆)

Orthorhombic · space group P212121 (No. 19) · Pearson oP96 · mineral: beta-D-glucose

Symmetry elements and Wyckoff positions (interactive)

Anhydrous β-D-Glucose (C₆H₁₂O₆) in P212121

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

Unit cell

Lattice constants
a = 9.290 Å, b = 12.650 Å, c = 6.700 Å; α = 90.00°, β = 90.00°, γ = 90.00°
Cell volume
787.4 ų
Atoms in the conventional cell
96 (C 24, H 48, O 24)
Formula units Z
24
Pearson symbol
oP96 — orthorhombic, primitive lattice, 96 atoms per conventional cell
Symmetry operations
4 per cell

Crystallographic sites

SiteElementWyckoffMultiplicityxyz
C1C4a40.02030.16120.4590
C2C4a40.92000.07130.3885
C3C4a40.99300.00610.2243
C4C4a40.04780.07680.0579
C5C4a40.14790.16110.1454
C6C4a40.21010.23840.9966
H10H4a40.95590.11540.9836
H11H4a40.24000.12020.2269
H12H4a40.27990.28540.0910
H13H4a40.27880.18970.9104
H14H4a40.99790.25220.6970
H15H4a40.78690.02770.5910
H16H4a40.90310.85850.1687
H17H4a40.17980.00870.7821
H18H4a40.10330.37230.9104
H7H4a40.10760.13200.5343
H8H4a40.81810.10590.3298
H9H4a40.08070.96130.2866
O19O4a40.93860.22810.5821
O20O4a40.88830.00590.5591
O21O4a40.88510.93510.1439
O22O4a40.12970.01680.9136
O23O4a40.06400.22210.2884
O24O4a40.09900.29380.8918

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 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

AB2C_oP96_19_6a_12a_6a-002: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol oP96, then the space-group number 19, then the Wyckoff letters occupied by each element in turn (C: 4a; C: 4a; C: 4a; C: 4a; C: 4a; C: 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; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a; O: 4a). Two structures with the same label are the same arrangement with different cell parameters or coordinates.

Note: \beta-D-glucose.

Source

Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB2C_oP96_19_6a_12a_6a-002 (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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