Fig. 7. Synthesis of 14 and the plot of its molecular structure (ellipsoids are set to 50% probability; H atoms, anion and solvents are omitted for clarity). Selected distances (Å): P1–P2 2.2463(7), P1–C1 1.900(2), P1–C5 1.845(2), P2–C1 1.8625(19), P2–C3 1.777(2), C3–C4 1.373(3), C1–C2 1.455(2).