Oxidative assembly of octahedral nickel(II)-tris(3,5-dimethylpyrazol-1-yl) methane (Tpm*) complexes by reaction of Ni(COD)2 (COD = 1,5-cyclooctadiene) with putative oxene and nitrene precursors

Shengwen Liang, Swarup Chattopadhyay, Jeffrey L. Petersen, Victor G. Young, Michael P. Jensen

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)75-81
Number of pages7
JournalPolyhedron
Volume50
Issue number1
DOIs
StatePublished - Feb 13 2013

Bibliographical note

Funding 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.

Keywords

  • Amido ligand
  • Hydrogen bonding
  • Iminoiodinane
  • Iodosylbenzenes
  • Nickel
  • Tris(pyrazolyl)methane
  • meta-Chloroperoxybenzoic acid

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