Fig. 1. ORTEP-3 diagram of the molecular structure of (3) displaying 50% probability ellipsoids. H atoms have been omitted for clarity. Selected bond-lengths (Å) and angles (°): U1–O1 1.826(3), Ct(COT)–U 1.949(5), Ct(Cp*)–U1 2.492(1); Ct(COT)–U1–Ct(Cp*) 135.27(2), Ct(COT)–U1–O1 162.24(7), Ct(Cp*)–U1–O1 108.08(2).