Frontispiece: Isolation and Ambident Reactivity of a Chlorogermylenoid

Ambident Germanium Complexes In their Communication on page 13784 ff., T. Sasamori et al. show the synthesis of a chloro–ferrocenyl germanium complex by treatment of 2,5‐di(3,5‐ tert ‐butylphenyl)‐1‐lithioferrocene with GeCl 2 ⋅dioxane. This complex exhibited an ambident reactivity; it displayed a behavior characteristic for a dichlorogermylene anion in THF, while it exhibited the typical reactivity of a chlorogermylene in toluene. The key to the successful isolation of this germylenoid is the presence of the bulky ferrocenyl ligand with 3,5‐ tert ‐butylphenyl groups that allow effective CH−Cl interactions and, thus, raise the Ge−Cl bond dissociation energy. Single‐crystal X‐ray diffraction of the chlorogermylenoid, recrystallized in THF, revealed a separated‐ion‐pair structure in the solid state.