Table 1. Selective Parameters of Bond Length (Å), Bond Angle (°), Bending Angle (α/°), the Angle W–X–Z of Complexes W-XY Containing the Two Fragments [W(CO)5] and [X(YCp*)2] where Z Is the Midpoint of the Y–Y Distance, and Bonding Mode of YCp* with the Alternatives for the Cp* Ring for the Optimized Complexes W-XY (X = Ge, Sn, Pb; Y = B–Tl) Calculated at the BP86/def2-SVP Level.
| complex | bending angle (α/°) | bonding mode of YCp* with the alternatives for the Cp* ring |
|---|---|---|
| W-GeB | 125.1 | η5 |
| W-GeAl | 98.8 | η5 |
| W-GeGa | 104.4 | η5 |
| W-GeIn | 106.5 | η5 |
| W-GeTl | 110.9 | η5 to η3 |
| W-SnB | 112.9 | η5 |
| W-SnAl | 94.4 | η5 |
| W-SnGa | 98.6 | η5 |
| W-SnIn | 99.8 | η5 |
| W-SnTl | 105.3 | η5 to η3 |
| W-PbB | 107.3 | η5 |
| W-PbAl | 91.6 | η5 |
| W-PbGa | 96.2 | η5 |
| W-PbIn | 97.4 | η5 |
| W-PbTl | 102.7 | η5 and η3 |