Table 1. Selected bond lengths (Å).
| K1—O5w | 2.7153 (10) | K2—O6w i | 3.0151 (10) |
| K1—O1w | 2.7183 (11) | K3—O2w | 2.6665 (9) |
| K1—O7w | 2.7381 (10) | K3—O4iv | 2.7867 (9) |
| K1—O6w | 2.7532 (9) | K3—O4w v | 2.7983 (10) |
| K1—O3w | 2.8479 (9) | K3—O5w vi | 2.8344 (10) |
| K1—O2w | 2.8486 (9) | K3—O1w iv | 2.8394 (10) |
| K1—O1 | 2.9757 (9) | K3—O7w vi | 2.9094 (9) |
| K2—O1 | 2.7317 (10) | K3—O5w | 2.9246 (10) |
| K2—O4w | 2.7391 (10) | P1—O1 | 1.5414 (8) |
| K2—O7w | 2.7659 (9) | P1—O2 | 1.5440 (8) |
| K2—O1w i | 2.7836 (9) | P1—O4 | 1.5472 (10) |
| K2—O2w ii | 2.8269 (9) | P1—O3 | 1.5523 (8) |
| K2—O3w iii | 3.0144 (9) |
Symmetry codes: (i)
; (ii)
; (iii)
; (iv)
; (v)
; (vi)
.