| X | theoretical lattice parameter a [Å] | measured lattice parameter a [Å] | measured lattice parameter c [Å] | Measured cellvolume [Å]³ | spacegroup |
| 0.9 | 5.0962 | 5.1004 (4) | 15.3512 (1) | 345.844 (9) | P63/m |
| 0.92 | 5.0922 | 5.0978 (3) | 15.3602 (3) | 345.694 (9) | P63/m |
| 0.94 | 5.0881 | 5.0975 (1) | 15.3563 (7) | 345.566 (5) | P63/m |
| 0.96 | 5.0840 | 5.0906 (9) | 15.3497 (1) | 344.483 (5) | P63/m |
| 0.98 | 5.0799 | 5.0886 (8) | 15.3550 (3) | 344.331 (7) | P63/m |
| 1 | 5.0759 | 5.0783 (8) | 15.3483 (4) | 342.789 (5) | P63/m |