Electrode - Ligand Interactions Dramatically Enhance CO 2 Conversion 2 to CO by the [ Ni ( cyclam ) ] ( PF 6 ) 2 Catalyst

2 to CO by the [Ni(cyclam)](PF6)2 Catalyst 3 Yueshen Wu,†,‡,⊥ Benjamin Rudshteyn,†,‡,⊥ Almagul Zhanaidarova, Jesse D. Froehlich, 4 Wendu Ding,†,‡,∥ Clifford P. Kubiak,* and Victor S. Batista*,†,‡ 5 †Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States 6 ‡Energy Sciences Institute, Yale University, P.O. Box 27394, West Haven, Connecticut 06516, United States 7 Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California 8 92093, United States