π-accepting-pincer rhodium complexes

An unusual coordination mode of PCP-type systems

Elizaveta Kossoy, Mark A. Iron, Boris Rybtchinski, Yehoshoa Ben-David, Linda J W Shimon, Leonid Konstantinovski, Jan M L Martin, David Milstein

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The novel π-accepting, pincer-type ligand, dipyrrolylphoshinoxylene (DPyPX), is introduced. This ligand has the strongest π-accepting phosphines used so far in the PCP family of ligands and this results in some unusual coordination chemistry. The rhodium(I) complex, [(DPyPX)Rh(CO)(PR3)] (4, R=Ph, Et, pyrrolyl) is prepared by treating the relevant [(DPyPX)Rh(PR 3)] (3) complex with CO and is remarkably resistant to loss of either ligand. X-ray crystallographic analysis of complex 4b (R=Et) reveals an unusual cisoid coordination of the PCP phospbine ligands. These observations are supported by density functional theory (DFT) calculations.

Original languageEnglish
Pages (from-to)2319-2326
Number of pages8
JournalChemistry - A European Journal
Volume11
Issue number8
DOIs
Publication statusPublished - Apr 8 2005

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Rhodium
Ligands
Carbon Monoxide
Phosphines
Density functional theory
X rays

Keywords

  • Coordination modes
  • P ligands
  • Pincer ligands
  • Rhodium
  • Tridentate ligands

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

π-accepting-pincer rhodium complexes : An unusual coordination mode of PCP-type systems. / Kossoy, Elizaveta; Iron, Mark A.; Rybtchinski, Boris; Ben-David, Yehoshoa; Shimon, Linda J W; Konstantinovski, Leonid; Martin, Jan M L; Milstein, David.

In: Chemistry - A European Journal, Vol. 11, No. 8, 08.04.2005, p. 2319-2326.

Research output: Contribution to journalArticle

Kossoy, Elizaveta ; Iron, Mark A. ; Rybtchinski, Boris ; Ben-David, Yehoshoa ; Shimon, Linda J W ; Konstantinovski, Leonid ; Martin, Jan M L ; Milstein, David. / π-accepting-pincer rhodium complexes : An unusual coordination mode of PCP-type systems. In: Chemistry - A European Journal. 2005 ; Vol. 11, No. 8. pp. 2319-2326.
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