145360-46-9Relevant academic research and scientific papers
Base-promoted synthesis of monometallic and bimetallic platinum complexes containing chelating O,O- or S,S-donor ligands
Praingam, Ngamjit,Anderson, Gordon K.,Rath, Nigam P.
, p. 1767 - 1770 (2008/10/09)
Dichloroplatinum complexes [PtCl2L2] (L2 = cod, dppp) react with 1,2-C6H4E2 (E = O, S) in the presence of a base to produce mononuclear complexes. The diene was not readily displaced from [Pt(E2C6H4-EE)(cod)]. A second approach to complexes containing dianionic chelating ligands involved [Pt(acac)2] as precursor. Reaction with dppp and oxalic acid gave [Pt(C2O4)(dppp)], whereas the analogous reaction with Ph2PC{triple bond, long}CPPh2 produced the bimetallic complex [Pt(C2O4-OO)(μ-Ph2PC{triple bond, long}CPPh2)]2. Similar reactions with 1,2-C6H4E2 (E = O, S) also gave bimetallic products. The structures of [Pt(C2O4)(dppp)] and [Pt(C2O4-OO)(μ-Ph2PC{triple bond, long}CPPh2)]2 have been determined by X-ray crystallography.
Synthesis, reactions, and 31P NMR analysis of (diphosphine)platinum dithiolates
Fazlur-Rahman,Verkade
, p. 5331 - 5335 (2008/10/08)
The reaction between (diphosphine)PtCl2 (diphosphine = dppm, dppe, dppp, dppb, dcpe, depe) and bifunctional thiols (1,2-ethanedithiol, 1,3-propanedithiol, 1,2-benzenedithiol) in acetone or CH2Cla gives the corresponding dithiolate complexes (1-18) in the presence of a base. These thiolato complexes have been isolated as crystalline solids in 57-88% yields and were characterized by 1H, 13C, and 31P NMR spectroscopy. The 31P chemical shifts of these complexes are dependent on both the nature of the diphosphine and the chelating nature of the dithiolato ligand. Treatment of (depe)Pt(SC6H4-o-S) (15) and the analogous dcpe complex (18) with 1 equiv of MeI, allyl chloride, or Me3OBF4 gave the corresponding sulfur-monoalkylated product. Reaction of Cr(nbd)(CO)4 with (depe)PtSC6H4-o-S (15) gave (depe)Pt(SC6H4-o-S)(Cr(CO)4 (22) in 64% yield.
