Reactions of diacetylene ligands with trinuclear clusters II. Reactions of hexa-2,4-diyne-1,6-diol and 1,4-diphenyl-1,3-butadiyne withRu3(CO)12

S. P. Tunik, E. V. Grachova, V. R. Denisov, G. L. Starova, A. B. Nikol'skii, P. M. Dolgushin, A. I. Yanovsky, Yu T. Struchkov

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Abstract

Thermal reactions of Ru3(CO)12 with hexa-2,4-diyne-1,6-diol and 1,4-diphenyl-1,3-butadiyne were studied. Reaction of the triruthenium cluster with HOCH2C2C2CH2OH results in substitution of two CO groups and coordination of the diyne ligand to a ruthenium triangle in parallel μ32-mode via one of the conjugated triple bonds, The structure of the final product Ru3(CO)1032-HOCH2C2C2CH2OH) was determined by a single-crystal X-ray study. The analogous reaction with PhC2C2Ph affords the binuclear ruthenium complex Ru2(CO)6, (μ34-C(Ph)C(C2Ph)C(C2Ph)C(Ph)). The starting diyne ligand in this complex is dimerized forming a ruthenacyclopentadiene ring Ru-C(Ph)=C(R)C(R)=C(Ph). As a whole, the structural unit obtained can be rationalized as a cluster skeleton containing two d-and four p-elements arranged into nido pentagonal bipyramid with eight skeletal electron pairs; this cluster pattern is very typical for the iron subgroup alkyne polynuclear complexes.

Original languageEnglish
Pages (from-to)339-343
Number of pages5
JournalJournal of Organometallic Chemistry
Volume536-537
DOIs
Publication statusPublished - 30 May 1997

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Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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