Table 1. A comparison of structural parameters (Å, °) in Cp′3U(BH4) and other Cp′3UX {X = Cl−, I−, [Si(SiMe3)3]−} complexes.
cent = C5H4SiMe3 centroid.
| Cp′3U(BH4) | Cp′3UCla (Windorff et al., 2017 ▸) | Cp′3UI (Windorff et al., 2017 ▸) | Cp′3U(η 1-CH=CH2) (Schock et al., 1988 ▸) | Cp′3U[Si(SiMe3)3] (Réant et al., 2020 ▸) | |
|---|---|---|---|---|---|
| U—(cent) | 2.458, 2.490, 2.500 | 2.473 | 2.475, 2.478, 2.480 | 2.481, 2.483, 2.489 | 2.472, 2.478, 2.485 |
| (cent)—U—X | 104.13, 104.14, 104.83 | 100.00 | 97.9, 101.2, 101.6 | 95.1 100.0 100.2 | 96.04, 96.30, 97.65 |
| (cent)—U—(cent) | 113.28, 114.26, 114.26 | 117.00 | 116.1, 116.4, 118.3 | 116.4, 117.2, 120.0 | 118.28, 118.88, 119.08 |
Note: (a) The asymmetric unit contains one Cp′ ring, one-third of a chloride atom, and one-third of a uranium atom.