NMR investigation of Pd(II)-Pd(0) reduction in the presence of mono- and ditertiary phosphines

Research output: Contribution to journalArticle

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Abstract

The reduction of Pd(II) to Pd(0) was investigated in the presence of both monodentate (PPh3) and bidentate (dppp=1,3-bis(diphenylphosphino)propane) phosphines. It was shown by 31P NMR measurements that triphenylphosphine can reduce Pd(OAc)2 to zerovalent palladium in toluene and dppp is mainly responsible for the reduction in dmf resulting in dppp hemioxide and dppp dioxide. Both mono- and bidentate coordinations of dppp in intermediate species are proposed on the basis of in situ NMR studies. In the presence of two equivalents of silver triflate, the formation of the [Pd(dppp)(PPh3)2]2+ square-planar complex cation has been observed without any reduction of Pd(II) to Pd(0) species.

Original languageEnglish
Pages (from-to)93-97
Number of pages5
JournalInorganica Chimica Acta
Volume286
Issue number1
Publication statusPublished - Mar 2 1999

Fingerprint

Phosphines
Toluene
Palladium
phosphines
Cations
Nuclear magnetic resonance
nuclear magnetic resonance
dioxides
Propane
propane
toluene
palladium
Silver
Positive ions
silver
cations
trifluoromethanesulfonic acid
triphenylphosphine
1,3-bis(diphenylphosphino)propane
palladium(II) acetate

Keywords

  • Nuclear magnetic resonance
  • Palladium complexes
  • Phosphine complexes
  • Reduction

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

NMR investigation of Pd(II)-Pd(0) reduction in the presence of mono- and ditertiary phosphines. / Csákai, Zita; Skoda-Földes, R.; Kollár, L.

In: Inorganica Chimica Acta, Vol. 286, No. 1, 02.03.1999, p. 93-97.

Research output: Contribution to journalArticle

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