Table 1. Selected bond lengths (Å).
| Sn1—C9 | 2.114 (7) |
| Sn1—C7 | 2.117 (7) |
| Sn1—C8 | 2.120 (8) |
| Sn1—O1 | 2.135 (5) |
| Sn1—O2i | 2.641 (5) |
| Sn2—C10 | 2.108 (7) |
| Sn2—C12 | 2.108 (7) |
| Sn2—C11 | 2.114 (7) |
| Sn2—O3 | 2.178 (4) |
| Sn2—O5 | 2.495 (5) |
Symmetry code: (i) 
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