| Total concentration of Eu2+ (x) | Polyhedral volume (Å3) | Distortion index | ||
| Sr(1) site | Sr(2) site | Sr(1) site | Sr(2) site | |
| 0.10 | 46.903 | 37.267 | 0.0388 | 0.0652 |
| 0.80 | 47.710 | 36.538 | 0.0425 | 0.0687 |