| a (Å) | b (Å) | c (Å) | V(Å3) | Pb-Br1 | Pb-Br2 |
实验值 [24] | 7.976 | 11.841 | 8.565 | 808.91 | 2.971 | 2.988/2.971 |
本文计算值 | 7.908 | 11.962 | 8.609 | 814.43 | 3.001 | 3.016/2.996 |
HSE06计算 [25] | 8.180 | 12.098 | 8.848 | 875.61 | / | / |