Table 1. Selected geometric parameters (Å, °).
| Co1—N1 | 1.9534 (17) | Co1—N10 | 1.951 (2) |
| Co1—N3 | 1.9680 (18) | N7—N8 | 1.208 (3) |
| Co1—N4 | 1.9699 (17) | N8—N9 | 1.142 (3) |
| Co1—N6 | 1.9533 (16) | N10—N11 | 1.181 (2) |
| Co1—N7 | 1.9334 (18) | N11—N12 | 1.148 (3) |
| N1—Co1—N3 | 86.48 (7) | N7—N8—N9 | 175.7 (2) |
| N1—Co1—N4 | 91.77 (7) | N10—N11—N12 | 175.3 (3) |
| N1—Co1—N6 | 176.36 (8) | Co1—N7—N8 | 122.05 (15) |
| N1—Co1—N7 | 90.68 (7) | Co1—N10—N11 | 126.09 (17) |
| N1—Co1—N10 | 89.46 (8) | C5—N2—C6 | 123.44 (17) |
| N3—Co1—N4 | 92.28 (7) | C15—N5—C16 | 125.87 (19) |
| N3—Co1—N6 | 89.89 (7) | N1—C5—N2 | 119.38 (18) |
| N3—Co1—N7 | 93.31 (8) | N2—C6—N3 | 119.1 (2) |
| N3—Co1—N10 | 175.02 (7) | N4—C15—N5 | 119.30 (18) |
| N4—Co1—N6 | 88.08 (7) | N5—C16—N6 | 120.16 (18) |
| N4—Co1—N7 | 174.02 (8) | C5—N1—Co1 | 120.94 (14) |
| N4—Co1—N10 | 84.97 (8) | C6—N3—Co1 | 120.49 (14) |
| N6—Co1—N7 | 89.82 (7) | C15—N4—Co1 | 122.47 (15) |
| N6—Co1—N10 | 94.15 (8) | C16—N6—Co1 | 121.35 (13) |
| N7—Co1—N10 | 89.61 (9) |