Jump to main content
Jump to site search

Issue 5, 2012
Previous Article Next Article

Synthesis and characterization of organo-scandium and yttrium complexes stabilized by phosphinoamide ligands

Author affiliations

Abstract

Addition of three equivalents of phosphinoamine, (ArNHPiPr2) [Ar = 3,5-dimethylphenyl] to M(CH2SiMe3)3(THF)2 [M = Sc, Y] precursors gives complexes of the form (ArNPiPr2)3M(THF) [M = Sc, Y]. In the case of scandium, addition of Sc(CH2SiMe3)3(THF)2 to (ArNPiPr2)3Sc(THF) affords (ArNPiPr2)2Sc(CH2SiMe3)(THF), which has been isolated and structurally characterized. In contrast, addition of Y(CH2SiMe3)3(THF)2 to (ArNPiPr2)3Y(THF) generates a distribution of phosphinoamide-containing products consistent with the formulations (ArNPiPr2)2Y(CH2SiMe3)(THF) and (ArNPiPr2)Y(CH2SiMe3)2(THF), as ascertained using NMR spectroscopy. Attempts to react the alkyl-containing phosphinoamide complexes with small molecules such as H2 led to disproportionation type processes.

Graphical abstract: Synthesis and characterization of organo-scandium and yttrium complexes stabilized by phosphinoamide ligands

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Aug 2011, accepted on 31 Oct 2011 and first published on 06 Dec 2011


Article type: Paper
DOI: 10.1039/C1DT11501D
Citation: Dalton Trans., 2012,41, 1524-1528
  •   Request permissions

    Synthesis and characterization of organo-scandium and yttrium complexes stabilized by phosphinoamide ligands

    N. R. Halcovitch and M. D. Fryzuk, Dalton Trans., 2012, 41, 1524
    DOI: 10.1039/C1DT11501D

Search articles by author

Spotlight

Advertisements