Table 1 Selected bond lengths for 3 (Å)

From: Uranium(III)-carbon multiple bonding supported by arene δ-bonding in mixed-valence hexauranium nanometre-scale rings

U1III/IV-distances

U2III-distances

U3IV-distances

U1–I1

3.0917(4)

U2–I2

3.1453(7)

U3–I2

3.1827(7)

U1–C1/–C1A

2.47(2)/2.30(3)

U2–C39

2.413(8)

U3–C70

2.398(7)

U1–C33

2.717(8)

U2–C33

2.718(8)

U3–C102

2.629(6)

U1–C34

2.678(9)

U2–C34

2.670(9)

U3–C103

2.590(8)

U1–C35

2.579(9)

U2–C35

2.647(8)

U3–C103A

2.669(8)

U1–C36

2.608(9)

U2–C36

2.602(9)

U3–C104

2.679(8)

U1–C37

2.653(9)

U2–C37

2.576(9)

U3–C104A

2.653(8)

U1–C38

2.674(8)

U2–C38

2.664(8)

U3–C105

2.863(7)

  1. The oxidation states are formal and provided only as a guide
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