Literature data on structural details at room temperature and phase transitions of \mathrm{Sr}_{2} \mathrm{CuWO}_{6}. The data shown are as follows: literature reference (‘Ref.’); lattice constants ( a, c); \mathrm{Cu}-\mathrm{O} 1 and \mathrm{Cu}-\mathrm{O} 2 distances inside the \mathrm{CuO}_{6} octahedra \left(d_{1}, d_{2}\right); angle of rotation of the \mathrm{WO}_{6} octahedra around the c-axis (\varphi); temperature of the first-order phase transition from the tetragonal to the cubic phase ( T_{\mathrm{c}}).
| Ref. | a(\AA) | c(\AA) | c / a \sqrt{2} | d_{1}(\AA) | d_{2}(\AA) | d_{1} / d_{2} | \varphi (deg) | T_{\mathrm{c}}\left({ }^{\circ} \mathrm{C}\right) |
|---|---|---|---|---|---|---|---|---|
| [1] | 5.42 | 8.40 | 1.10 | - | - | - | - | - |
| [2] | 5.431 | 8.410 | 1.095 | - | - | - | - | 920 |
| [3, 4] { }^{\mathrm{a}, \mathrm{b}} | 5.422 | 8.395 | 1.095 | 2.2834 | 1.9384 | 1.1780 | 8.9 | 897 |
| [5] { }^{\text {b }} | 5.42693 | 8.4087 | 1.0956 | 2.3250 | 1.9604 | 1.1860 | 10.5 | - |
| [6] { }^{\text {b }} | 5.4290 | 8.4155 | 1.0961 | 2.3227 | 1.9339 | 1.2010 | 8.6 | - |
| [7] { }^{\text {c }} | 5.4315 | 8.4024 | 1.0939 | - | - | - | - | - |
| [8] { }^{\text {b }} | 5.4291 | 8.4154 | 1.0961 | 2.322 | 1.955 | 1.188 | 10.9 | 920 |