Migratory insertion reaction in alkenyl ruthenium(II) complexes containing a trifluoroacetate ligand. X-ray structure of the Ru(η<sup>2</sup>- O<inf>2</inf>CCF<inf>3</inf>)(η<sup>1</sup>-O=CCH=CH <sup>t</sup>Bu)(CO)(PPh<inf>3</inf>)<inf>2</inf> complex

Lluïsa Matas, Josep Muniente, Josep Ros, Ángel Alvarez-Larena, Joan F. Piniella

Research output: Contribution to journalArticleResearchpeer-review

8 Citations (Scopus)

Abstract

Reaction of compound Ru(O2CCF3)(CH=CHtBu)(CO)(PPh3) 2 with CO gives the η1-alkeneacyl complex Ru(O2CCF3)(O=CCH=CHtBu)(CO)(PPh 3)2, which is in equilibrium with the dicarbonyl Ru(O2CCF3)(CH=CHtBu)(CO)2(PPh 3)2 derivative in CH2Cl2 solution. The η1-acyl form involves an η1-coordination of the O2CCF3 ligand, whereas the dicarbonyl form contains the carboxylate ligand η2-coordinated to the metal. The same mixture of carbonylated compounds can be obtained from the reaction of Ru(CH=CHtBu)Cl(CO)2(PPh3)2 with Na[O2CCF3] in a CH2Cl2/MeOH solution. These reactions reveal the significance of ancillary bidentate ligands for the η-nature of the acyl-metal bond. The molecular structure of the complex Ru(O2CCF3)(O=CCH=CHtBu)(CO)(PPh 3)2 was established by X-ray diffraction study of a monocrystal obtained from a CH2Cl2/MeOH solution of the mixture of carbonylated compounds.
Original languageEnglish
Pages (from-to)364-367
JournalInorganic Chemistry Communications
Volume2
Issue number8
DOIs
Publication statusPublished - 1 Aug 1999

Keywords

  • Acyl complexes
  • Alkenyl complexes
  • Crystal structures
  • Ruthenium complexes

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