Crystal Lab › Prototype structures › Orthorhombic
Anhydrous α-D-Glucose (C₆H₁₂O₆)
Orthorhombic · space group P212121 (No. 19) · Pearson oP96 · mineral: α-D-glucose
Symmetry elements and Wyckoff positions (interactive)
Anhydrous α-D-Glucose (C₆H₁₂O₆) in P212121
SettingUnit cell
- Lattice constants
- a = 10.366 Å, b = 14.851 Å, c = 4.975 Å; α = 90.00°, β = 90.00°, γ = 90.00°
- Cell volume
- 765.9 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
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| C1 | C | 4a | 4 | 0.3329 | 0.1007 | 0.4239 |
| C2 | C | 4a | 4 | 0.4184 | 0.1746 | 0.5454 |
| C3 | C | 4a | 4 | 0.5611 | 0.1514 | 0.5152 |
| C4 | C | 4a | 4 | 0.5860 | 0.0569 | 0.6200 |
| C5 | C | 4a | 4 | 0.4955 | 0.9886 | 0.4878 |
| C6 | C | 4a | 4 | 0.5141 | 0.8953 | 0.6025 |
| H10 | H | 4a | 4 | 0.5676 | 0.0566 | 0.8385 |
| H11 | H | 4a | 4 | 0.5135 | 0.9865 | 0.2689 |
| H12 | H | 4a | 4 | 0.6171 | 0.8793 | 0.6034 |
| H13 | H | 4a | 4 | 0.4805 | 0.8946 | 0.8115 |
| H14 | H | 4a | 4 | 0.2753 | 0.0674 | 0.0700 |
| H15 | H | 4a | 4 | 0.4486 | 0.2777 | 0.2968 |
| H16 | H | 4a | 4 | 0.7246 | 0.2137 | 0.6178 |
| H17 | H | 4a | 4 | 0.7517 | 0.0082 | 0.7323 |
| H18 | H | 4a | 4 | 0.4127 | 0.7861 | 0.5701 |
| H7 | H | 4a | 4 | 0.2326 | 0.1123 | 0.4845 |
| H8 | H | 4a | 4 | 0.3958 | 0.1777 | 0.7600 |
| H9 | H | 4a | 4 | 0.5889 | 0.1542 | 0.3005 |
| O19 | O | 4a | 4 | 0.3471 | 0.1007 | 0.1460 |
| O20 | O | 4a | 4 | 0.3880 | 0.2598 | 0.4345 |
| O21 | O | 4a | 4 | 0.6334 | 0.2154 | 0.6632 |
| O22 | O | 4a | 4 | 0.7176 | 0.0348 | 0.5687 |
| O23 | O | 4a | 4 | 0.3654 | 0.0154 | 0.5370 |
| O24 | O | 4a | 4 | 0.4458 | 0.8311 | 0.4482 |
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-001: 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: α-D-glucose.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry AB2C_oP96_19_6a_12a_6a-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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