OXIDATION OF NICKEL THIOLATE LIGANDS BY DIOXYGEN

The reactions of Ni complexes of the tridentate dithiolate ligands RN(CH 2 CH 2 S - ) 2 and S(CH 2 CH 2 S - ) 2 with O 2 leading to the formation of complexes containing one S-hound sulfinate ligand are described. Reaction of the ligands with Ni(OAc) 2 yields dinuclear [Ni(L)] 2 complexes. Reaction of these dimers with Et 4 N(CN) yields Et 4 N + salts of the four-coordinate complex anions, [Ni(L)CN] - .