Fig. 3. (a) Crystal structure of 4-Yb and selected bond distances in the Mg–CH2CPh2–Yb unit. (b) Crystal structure of 5-Yb and selected bond distances in the Mg–CH(Ph)C(H)Ph–Yb unit. (c) Crystal structure of 6-Yb and selected bond distances in the Mg–(anthracene)–Yb unit. All H atoms, Et groups on BDI* and Me groups on Am* have been omitted for clarity.
