Reductive Elimination from Sterically Encumbered Ni–Polypyridine Complexes

[Image: see text] Herein we disclose the synthesis of sterically encumbered dialkylnickel(II) complexes bearing 2,9-dimethyl-1,10-phenanthroline ligands. A comparison with their unsubstituted analogues by both X-ray crystallography and theoretical calculations revealed significant distortions in their molecular structures. Eyring plots along with stoichiometric and photoexcitation studies revealed that sterically encumbered dialkylnickel(II) complexes enable facile C(sp(3))–C(sp(3)) reductive elimination, thus offering an improved understanding of Ni catalysis.