The syntheses and vibrational spectra of tetrakis(carbonyl) palladium(II) and platinum(II) undecafluorodiantimonate(V), [Pd(CO)4][Sb2F11]2, and [Pt(CO)4][Sb2F11]2
Citations Over TimeTop 10% of 1993 papers
Abstract
The reductive carbonylation of either platinum(IV) fluorosulfate, Pt(SO 3 F) 4 , or palladium(III) fluorosulfate, Pd(SO 3 F) 3 , either in solution of fluorosulfuric acid, HSO 3 F, or in the solid state with CO at pressures of 0.5 to 2 atmospheres and at 25 °C, affords in high yield complexes of the type M(CO) 2 (SO 3 F) 2 , M = Pd or Pt. The square-planar complexes are readily converted by solvolysis in liquid antimony(V) fluoride in the presence of CO at a pressure of about 1 atmosphere to white, thermally stable, salts of the composition [M(CO) 4 ][Sb 2 F 11 ] 2 , M = Pd or Pt, which contain the novel, square-planar cations [Pd(CO) 4 ] 2+ and [Pt(CO) 4 ] 2+ . The two cations exhibit the highest CO stretching frequencies reported so far, about 120 cm −1 higher than in free CO, which suggests the absence or near absence of π-back donation for the M—CO bond.
Related Papers
- → Alcohol carbonylation with palladium(II) complexes, effects of ligands, carbon monoxide, pressure and added bases(1979)75 cited
- → Palladium and platinum complexes containing the trichlorotin group(1971)19 cited
- → Reactions of homobinuclear platinum and palladium complexes with carbon monoxide(1983)11 cited
- → New routes to the synthesis of chloro-carbonyls of palladium(II) and platinum(II)(2000)4 cited
- Catalysts for the Oxidation of Carbon Monoxide at Low Temperatures.(1979)