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Synthesis of cationic 2,4-dimethylpentadienylruthenium complexes.: Crystal Structure of Carbonyl(η4-cyclohexa-1,3-diene)-(η5-2,4-dimethylpenta-2,4-dienyl)ruthenium Tetrafluoroborate

Research output: Contribution to journalJournal article


  • Tito Lumini
  • David Cox
  • Raymond Roulet
  • Gervais Chapuis
  • Francesco Nicolo
Journal publication date31/10/1990
JournalHelvetica Chimica Acta
Journal number7
Number of pages4
Original languageEnglish


The complex [Ru(η5-C7H11)2H]BF4 (C7H11 = 2,4-dimethylpenta-2,4-dienyl) is highly reactive towards two- and six-electron ligands. e.g. giving with CO complex [RuCO(η4-C7H12)(η5-C7H11)]BF4. The 2,4-dimethylpenta-1,3-diene ligand (C7H12) of the latter complex is readily displaced giving, e.g. with excess cyclohexa-1,3-diene (C6H8) complex [RuCO(η4-C6H8)(η5-C7H11)]BF4. These reactions provide a convenient entry into monopentadienylruthenium chemistry.