Table 1. Selected geometric parameters (Å, °).
| Co1—N1 | 1.964 (3) | Co1—N3 | 1.968 (3) |
| Co1—N5 | 1.967 (3) | Co1—N6 | 1.969 (3) |
| Co1—N4 | 1.968 (3) | Co1—N2 | 1.982 (3) |
| N1—Co1—N5 | 91.86 (14) | N4—Co1—N6 | 91.39 (13) |
| N1—Co1—N4 | 175.38 (14) | N3—Co1—N6 | 91.83 (13) |
| N5—Co1—N4 | 91.64 (14) | N1—Co1—N2 | 85.20 (13) |
| N1—Co1—N3 | 91.25 (13) | N5—Co1—N2 | 91.96 (14) |
| N5—Co1—N3 | 175.65 (14) | N4—Co1—N2 | 91.68 (13) |
| N4—Co1—N3 | 85.42 (14) | N3—Co1—N2 | 91.34 (15) |
| N1—Co1—N6 | 91.91 (13) | N6—Co1—N2 | 175.76 (13) |
| N5—Co1—N6 | 85.02 (13) |