| Total concentration of Eu2+ (x) | Polyhedral volume (Å3) | Distortion index | ||
| Ba(1) site | Ba(2) site | Ba(1) site | Ba(2) site | |
| 0.10 | 53.244 | 43.064 | 0.0437 | 0.0475 |
| 0.80 | 51.431 | 39.356 | 0.0418 | 0.0584 |