Table 1. Selected bond lengths (Å).

Ba1—O4i	2.794 (9)
Ba1—O6	2.809 (10)
Ba1—O4	2.854 (9)
Ba1—O5	2.877 (10)
Cd1—O2ii	2.227 (10)
Cd1—O3	2.227 (9)
Cd1—O1iii	2.364 (8)

Symmetry codes: (i) ; (ii) ; (iii) .