Table 1. Selected geometric parameters (Å, °) for 1 .
| Ni1—N1 | 1.8587 (14) | Ni1—S1 | 2.1421 (5) |
| Ni1—N3 | 1.9268 (14) | S1—C1 | 1.7396 (17) |
| Ni1—N2 | 1.9345 (13) | N1—C7 | 1.289 (2) |
| N1—Ni1—N3 | 172.68 (6) | N1—Ni1—S1 | 97.77 (5) |
| N1—Ni1—N2 | 86.53 (6) | N3—Ni1—S1 | 89.53 (5) |
| N3—Ni1—N2 | 86.16 (6) | N2—Ni1—S1 | 175.49 (4) |
| N1—C8—C9A—N2 | 42.9 (2) |