Abstract
The reactivity of NiO(arom-PSSP) with small molecules was studied in comparison to the reactivity of NIO(PSSP) which was studied by previous members of our group. The low-valent nickel atom in this arom-PSSP ligand exhibited reactivity toward small molecules such as S02, CO, and NO. The reaction of the amphoteric ligand, S02 with NiO(arom-PSSP) formed a distorted tetradentate NiO complex [(SO2)NiO(113-arom-PSSP)], by displacing one sulfur atom from the ligand. The S02 ligand in the complex [(SO2)NiO(113-arom-PSSP)] is in a coplanar bonding mode with the nickel atom and does not undergo oxidation in the presence of oxygen to give sulfate. The reaction of NiO(arom-PSSP) and I(SO2)NiO(113-arom-PSSP)] with the stronger Tc-acid CO ligand resulted in displacement of both sulfur donors of the P/S ligand as well as the S02 ligand to give a mixture of the di and tricarbonyl complexes. All the CO derivatives of the NiO(P2S2) complexes appear to have a distorted tetrahedral geometry.
Kang, Jeehee (1997). Reactivity of low-valent nickel-1,3-BIS (o-Diphenylphosphinophenylthio) propane (arom-PSSP) with small molecules. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1997 -THESIS -K36.