Control of Reductive Elimination and Acidolysis of Diarylnickel(II) Complexes by the Kind of Bronsted Acid and the Presence of Oxygen

Reaction of NiAr2(bpy) (Ar = electron withdrawing aryl group, bpy = 2,2ʹ-bipypridyl) with Bronsted acids leads to reductive elimination of Ar-Ar from NiAr2(bpy). The reaction also causes acidolysis of the Ni complex depending on the kind of the acid and reaction conditions.