| O1—S1—O2 | 119.88 (12) |
| O1—S1—N1 | 107.29 (11) |
| O2—S1—N1 | 107.34 (11) |
| O1—S1—C9 | 108.32 (13) |
| O2—S1—C9 | 106.53 (13) |
| N1—S1—C9 | 106.83 (11) |
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