41620-24-0Relevant academic research and scientific papers
Aryl(halogeno)bis(triphenylphosphane)platinum(II) Compounds. Syntheses and cis-trans Isomerizations
Ertl, Josef,Grafl, Dieter,Brune, Hans Albert
, p. 1082 - 1090 (2007/10/02)
The syntheses of the platinum-organic compounds cis- (X = H, 3-H3C-, 3-H3CO-, 4-H3C-, 4-H3CO-) and cis- (X = H, 3-H3C-, 3-H3CO-, 3-(H3C)2N-, 4-H3C-, 4-H3CO-) are described; their thermal isomerization in crystalline phase are studied and the resulting trans-isomers characterized. - Key words: Platinum(II) Complexes, Syntheses, Isomerizations
ORGANOPLUMBIO COMPLEXES OF PLATINUM(II)
Al-Allaf, Talal A. K.,Butler, Gregory,Eaborn, Colin,Pidcock, Alan
, p. 335 - 344 (2007/10/02)
The complex reacts with Pb2Ph6 to give cis-; this decomposes in solution to cis-, which may also be obtained from the ethylene complex and PbPh4.Lead compounds PbPhMe3 and PbPh3Br also give produc
Mechanistic Studies of Some Oxidative-addition Reactions: Free-radical Pathways in the Pt0-RX, Pt0-PhBr, and PtII-R'SO2X Reactions (R=Alkyl, R'=Aryl, X=Halide) and in the Related Rhodium(I) or Iridium(I) Systems
Hall, Thomas L.,Lappert, Michael F.,Lednor, Peter W.
, p. 1448 - 1456 (2007/10/02)
Spin-trapping studies, using R'NO (R'=But or C6HMe4-2,3,5,6), have been carried out on: (i) various Pt0-alkyl halide (RX) systems, e.g. (R''=Et or Ph, n=3 or 4)-Mel; (ii) a number of PtII-sulphonyl or acyl halide reactions, e.g. cis--p-MeC6H4SO2X; and (iii) several RhI- or IrI-alkyl halide additions.In most cases the appropriate nitroxyl spin adduct R(R')NO or R'(p-MeC6H4SO2)NO is observed by e.s.r. spectroscopy.In conjunction with appropriate control experiments, this leads to the unequivocal conclusion that free radicals are implicated in systems (i) (X= Cl, Br, or I) and (ii) (X= Cl or Br).By means of the nitrone PhCH=N(O)But, a platinum(I) complex has been trapped during the course of the -Etl reaction; its formulation as t)>I(PPh3)2> is based on e.s.r. data.Trityl chloride adds to a rhodium(I) or iridium(I) substrate> to give Ph3C and ; Ph2CHBr and give (Ph2CH)2 as the principal organic product.Galvinoxyl inhibits the addition of p-MeC6H4SO2Cl to .Azobis(isobutyronitrile) under photolysis catalyses the oxidative addition of PhBr to .Whereas the addition of MeI to in benzene leads exclusively to the 1:1 adduct, in tetrahydrofuran by far the major product is .It is concluded that reactive halides RX add to a platinum(0) substrate via a geminate radical pair ILn(X)> + R, whereas with less reactive halides, or in the sulphonyl halide-PtII addition, a radical-chain mechanism is operative.
