| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1325089 | Journal of Organometallic Chemistry | 2010 | 8 Pages |
Kinetic studies on the stepwise phosphine sulfide formation reaction of the five-coordinate trigonal-bipyramidal Pd(II) complexes with the tripodal tetradentate phosphine ligand, [PdCl(pp3)]Cl and [Pd(4-Cltp)(pp3)](BF4) (pp3 = tris[2-(diphenylphosphino)ethyl]phosphine; 4-Cltp = 4-chlorothiophenolate), were carried out, and it was revealed that the reactions proceeded via the intermediate with a pendant dissociated phosphino group. Formation of the intermediate was utilized for the bridging reaction onto Pt(II) to form the phosphine-bridged linear trinuclear and cyclic tetranuclear mixed-metal complexes. Difference in the steric conversion mechanism in the phosphine-bridging reaction between the linear tridentate phosphine (bis[2-(diphenylphosphino)ethyl]phenylphosphine) and pp3 is also reported.
Graphical abstractKinetic studies revealed that the phosphine sulfide formation reactions of the Pd(II) complexes with tripodal tetradentate phosphine proceed via the intermediate with a pendant dissociated phosphino group. The steric conversion mechanism of the phosphine-bridging reaction onto Pt(II) for the tetradentate phosphine was compared with that for the linear tridentate one.Figure optionsDownload full-size imageDownload as PowerPoint slide
