Crystal Lab › Prototype structures › Monoclinic
α-D-Glucose Monohydrate (C₆H₁₂O₆-H₂O)
Monoclinic · space group P1211 (No. 4) · Pearson mP54 · mineral: α-D-glucose monohydrate
Symmetry elements and Wyckoff positions (interactive)
α-D-Glucose Monohydrate (C₆H₁₂O₆-H₂O) in P1211
SettingUnit cell
- Lattice constants
- a = 8.803 Å, b = 5.085 Å, c = 9.708 Å; α = 90.00°, β = 97.67°, γ = 90.00°
- Cell volume
- 430.7 ų
- Atoms in the conventional cell
- 54 (C 12, H 28, O 14)
- Formula units Z
- 2
- Pearson symbol
- mP54 — monoclinic, primitive lattice, 54 atoms per conventional cell
- Symmetry operations
- 2 per cell
Crystallographic sites
| Site | Element | Wyckoff | Multiplicity | x | y | z |
|---|---|---|---|---|---|---|
| C1 | C | 2a | 2 | 0.8109 | 0.1372 | 0.9300 |
| C2 | C | 2a | 2 | 0.8912 | 0.0014 | 0.8217 |
| C3 | C | 2a | 2 | 0.8058 | 0.0308 | 0.6755 |
| C4 | C | 2a | 2 | 0.6389 | 0.9542 | 0.6765 |
| C5 | C | 2a | 2 | 0.5678 | 0.1058 | 0.7858 |
| C6 | C | 2a | 2 | 0.4041 | 0.0296 | 0.7967 |
| H10 | H | 2a | 2 | 0.4010 | 0.7160 | 0.9060 |
| H11 | H | 2a | 2 | 0.1930 | 0.5850 | 0.7070 |
| H12 | H | 2a | 2 | 0.0510 | 0.6370 | 0.6690 |
| H13 | H | 2a | 2 | 0.8910 | 0.8140 | 0.8420 |
| H14 | H | 2a | 2 | 0.8070 | 0.2390 | 0.6480 |
| H15 | H | 2a | 2 | 0.6320 | 0.7710 | 0.6990 |
| H16 | H | 2a | 2 | 0.5700 | 0.3030 | 0.7570 |
| H17 | H | 2a | 2 | 0.3650 | 0.1190 | 0.8810 |
| H18 | H | 2a | 2 | 0.3460 | 0.0800 | 0.7100 |
| H19 | H | 2a | 2 | 0.8330 | 0.4650 | 0.9940 |
| H20 | H | 2a | 2 | 0.0510 | 0.2230 | 0.8010 |
| H7 | H | 2a | 2 | 0.8560 | 0.0980 | 0.0260 |
| H8 | H | 2a | 2 | 0.8710 | 0.8830 | 0.5090 |
| H9 | H | 2a | 2 | 0.5070 | 0.8670 | 0.5120 |
| O21 | O | 2a | 2 | 0.8186 | 0.4128 | 0.9142 |
| O22 | O | 2a | 2 | 0.0467 | 0.0833 | 0.8314 |
| O23 | O | 2a | 2 | 0.8773 | 0.8575 | 0.5888 |
| O24 | O | 2a | 2 | 0.5558 | 0.0096 | 0.5422 |
| O25 | O | 2a | 2 | 0.6550 | 0.0544 | 0.9208 |
| O26 | O | 2a | 2 | 0.3867 | 0.7507 | 0.8130 |
| O27 | O | 2a | 2 | 0.1179 | 0.5250 | 0.6783 |
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 54 atoms drawn above are these sites multiplied by all 2 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
A6B14C7_mP54_4_6a_14a_7a-001: the stoichiometry comes first (A, B, C… are the elements in alphabetical order of their site labels), then the Pearson symbol mP54, then the space-group number 4, then the Wyckoff letters occupied by each element in turn (C: 2a; C: 2a; C: 2a; C: 2a; C: 2a; C: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; H: 2a; O: 2a; O: 2a; O: 2a; O: 2a; O: 2a; O: 2a; O: 2a). Two structures with the same label are the same arrangement with different cell parameters or coordinates.
Note: α-D-glucose monohydrate.
Source
Coordinates and cell from the AFLOW Encyclopedia of Crystallographic Prototypes, entry A6B14C7_mP54_4_6a_14a_7a-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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