Gas-phase ligand exchange of select transition-metal acetylacetonate and hexafluoroacetylacetonate complexes

Jordan Oswald Lerach, Brian D. Leskiw

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Gas-phase ligand exchange reactions between M(acac)2 and M(hfac)2 species, where M is Cu(II) and/or Ni(II), were observed to occur in a double-focusing reverse-geometry magnetic sector mass spectrometer. The gas-phase mixed ligand product, [M(acac)(hfac)]+, was formed following the co-sublimation of either homo-metal or hetero-metal precursors. The gas-phase formation of [Cu(acac)(hfac)]+ from hetero-metal precursors is reported herein for the first time. The [Ni(acac)(hfac)] + complex is also observed for the first time to form following the co-sublimation of not only Ni precursors, but also from separate Ni and Cu precursors. The corresponding fragmentation patterns of these species are also presented, and the mixed metal mixed ligand product [NiCu(acac) 2(hfac)]+ is observed.

Original languageEnglish (US)
Pages (from-to)4139-4146
Number of pages8
JournalRapid Communications in Mass Spectrometry
Volume22
Issue number24
DOIs
StatePublished - Dec 30 2008

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Transition metals
Gases
Metals
Ligands
Sublimation
Mass spectrometers
Geometry
acetyl acetonate
hexafluoroacetylacetonate

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

Cite this

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abstract = "Gas-phase ligand exchange reactions between M(acac)2 and M(hfac)2 species, where M is Cu(II) and/or Ni(II), were observed to occur in a double-focusing reverse-geometry magnetic sector mass spectrometer. The gas-phase mixed ligand product, [M(acac)(hfac)]+, was formed following the co-sublimation of either homo-metal or hetero-metal precursors. The gas-phase formation of [Cu(acac)(hfac)]+ from hetero-metal precursors is reported herein for the first time. The [Ni(acac)(hfac)] + complex is also observed for the first time to form following the co-sublimation of not only Ni precursors, but also from separate Ni and Cu precursors. The corresponding fragmentation patterns of these species are also presented, and the mixed metal mixed ligand product [NiCu(acac) 2(hfac)]+ is observed.",
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Gas-phase ligand exchange of select transition-metal acetylacetonate and hexafluoroacetylacetonate complexes. / Lerach, Jordan Oswald; Leskiw, Brian D.

In: Rapid Communications in Mass Spectrometry, Vol. 22, No. 24, 30.12.2008, p. 4139-4146.

Research output: Contribution to journalArticle

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