Heteroleptic palladium(II) and platinum(II) complexes of 1,1-bis(diphenylphosphino)ferrocene (dppf) and heterocyclic thionates: Crystal structures of [Pt(Phozt)2(κ2-dppf)] (PhoztH = 5-phenyl-1,3,4-oxadiazole-2-thione) and [Pd(bzoxt)2(κ2-dppf)] (bzoxtH = b

Treatment of [MCl2(κ2-dppf)] (M = Pd or Pt) with two equivalents of potassium heterocyclic thionate salts (KL) affords mixed ligand complexes [ML2(κ2-dppf)] [L = 5-phenyl-1,3,4-oxadiazole-2-thionate (Phozt), 4,5-diphenyl-1,2,4-triazole-3-thionate (Ph2tzt), benz-1,3-thiazoline-2-thionate (bztzt) and benz-1,3-oxazoline-2-thionate (bzoxt)]. X-ray structures of two examples, [Pt(Phozt)2(κ2-dppf)] and [Pd(bzoxt)2(κ2-dppf)], show that the ligands are coordinated in a monodentate fashion via the sulfur atom.

Treatment of [MCl2(κ2-dppf)] (M = Pd or Pt) with two equivalents of potassium heterocyclic thionate salts (KL) affords mixed ligand complexes [ML2(κ2-dppf)] [L = 5-phenyl-1,3,4-oxadiazole-2-thionate (Phozt), 4,5-diphenyl-1,2,4-triazole-3-thionate (Ph2tzt), benz-1,3-thiazoline-2-thionate (bztzt) and benz-1,3-oxazoline-2-thionate (bzoxt)].Figure optionsDownload as PowerPoint slideHighlights
► Platinum and palladium heterocyclic thionate complexes.
► Sulfur-only binding.
► Flexibility of dppf.