Reactions of [Ni0(COD)2] (COD = 1,5-cyclooctadiene) with meta-chloroperoxybenzoic acid, phenyl-N-tosylimidoiodinane or 2-(tert-butylsulfonyl)iodosylbenzene were performed in THF solution in the presence of one equivalent of tris(3,5-dimethylpyrazol-1-yl)methane (Tpm*), yielding the product complexes [Tpm*NiII(OH 2)(3-ClC6H4CO2)2] (2), [(Tpm*)2NiII][NiII(NHTs)4] (3), and [Tpm*NiII(OH)2(OH2)] (4), respectively. Products 2-4 arise from oxidation of solvated [Ni 0(COD)2], with subsequent ligation of Tpm* and substrate fragments leading to assembly of disparate octahedral nickel(II) centers. For comparative purposes, the previously reported complex [(Tpm*)NiII(OH2)Cl2] (1) was also obtained from Tpm* and NiCl2. All complexes were characterized spectroscopically, and complexes 1-3 were also structurally characterized by X-ray crystallography.
Bibliographical noteFunding Information:
The authors acknowledge the donors of the American Chemical Society Petroleum Research Fund (49296-DNI3) for support of this work. SL thanks the Condensed Matter and Surface Science (CMSS) Program at Ohio University for a graduate research fellowship.
- Amido ligand
- Hydrogen bonding
- meta-Chloroperoxybenzoic acid