Table 1. Selected geometric parameters (Å, °).
| Co1—N2 | 2.091 (3) | Co1—N41 | 2.173 (3) |
| Co1—N1 | 2.097 (3) | Co1—N21 | 2.180 (3) |
| Co1—N11 | 2.162 (3) | Co1—N31 | 2.183 (3) |
| N2—Co1—N1 | 179.47 (14) | N11—Co1—N21 | 178.63 (12) |
| N2—Co1—N11 | 88.91 (13) | N41—Co1—N21 | 91.01 (12) |
| N1—Co1—N11 | 90.82 (13) | N2—Co1—N31 | 88.72 (13) |
| N2—Co1—N41 | 89.29 (12) | N1—Co1—N31 | 90.82 (12) |
| N1—Co1—N41 | 91.17 (12) | N11—Co1—N31 | 88.60 (12) |
| N11—Co1—N41 | 90.33 (12) | N41—Co1—N31 | 177.75 (12) |
| N2—Co1—N21 | 90.86 (13) | N21—Co1—N31 | 90.05 (12) |
| N1—Co1—N21 | 89.41 (13) |