Acetylide Complexes of Ruthenium

Frederick R. Lemke, Tracey A. Hitt, Jennifer L. Steele, Gregory S. Girolami

Research output: Chapter in Book/Report/Conference proceedingChapter


Acetylenes can react with metal complexes in a number of ways. Internal acetylenes usually coordinate to metal centers in a η2-fashion, in which the C񣝁C triple bond donates electrons to the metal center, and both carbon atoms form Ru-C bonds. In some cases, another kind of reaction is seen, in which the terminal acetylene rearranges to a vinylidene complex, M񣝂C񣝂CHR. Closely related to this vinylidene complex is the ruthenium acetylide compound (η5-C5H5)Ru(C񣝁CPh)(PPh3)2, which was originally prepared by treatment of the chloro complex (cyclopentadienyl)bis(triphenylphosphine) chlororuthenium(II) ((η5-C5H5)RuCl(PPh3)2) with copper phenylacetylide, CuC񣝁CPh. The deprotonation of the monosubstituted vinylidene complexes to the corresponding acetylide complexes proceeds in high yield, and consequently this reaction sequence is the synthetic method used in the following preparation of the acetylide complexes. The chemistry of ruthenium cyclopentadienyl complexes is reviewed in this chapter.

Original languageEnglish (US)
Title of host publicationInorganic Syntheses
Number of pages5
ISBN (Electronic)9781118744994
ISBN (Print)9781118744871
StatePublished - May 12 2014


  • (cyclopentadienyl)bis(triphenylphosphine)(phenylacetylido)ruthenium(II)
  • (cyclopentadienyl)bis(triphenylphosphine)chlororuthenium(II)

ASJC Scopus subject areas

  • General Chemistry
  • General Engineering
  • General Materials Science


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