Fig. 2. Solid-state molecular structures of 3s and 3e. Ellipsoids are presented at the 50% probability level. Hydrogen atoms have been omitted for clarity. Selected bond distances (Å) and angles (deg) for 3s: U1–Ir1 2.8135(3), U1–Ir2 2.9718(3), U1–Ir3 2.9653(3), U1–U1′ 3.7945(4), Ir1–U1–Ir2 109.34(1), Ir1–U1–Ir1′ 95.70(1), Ir2–U1–Ir3 113.47(1), 
175.55(1), 
179.06(1). Selected bond distances (Å) and angles (deg) for 3e: U1–Ir1 2.8392(3), U1–Ir2 2.9899(3), U1–Ir3 2.9728(3), U1–U1′ 3.7819(4), Ir1–U1–Ir2 113.64(1), Ir1–U1–Ir1′ 96.25(1), Ir2–U1–Ir3 120.85(1), 
177.89(1), 
174.19(1).
