Table 1. Selected bond lengths (Å).
| Co1—C1 | 2.0914 (12) |
| Co1—C3 | 2.0956 (8) |
| Co1—C2 | 2.1113 (8) |
| C1—C2 | 1.4304 (12) |
| C1—C4 | 1.4961 (18) |
| C2—C3 | 1.4231 (12) |
| C2—C5 | 1.4935 (14) |
| C3—C6 | 1.4950 (13) |
| Co1—C1 | 2.0914 (12) |
| Co1—C3 | 2.0956 (8) |
| Co1—C2 | 2.1113 (8) |
| C1—C2 | 1.4304 (12) |
| C1—C4 | 1.4961 (18) |
| C2—C3 | 1.4231 (12) |
| C2—C5 | 1.4935 (14) |
| C3—C6 | 1.4950 (13) |