Synthetic, spectroscopic and electrochemical characterisation of mixed-metal acetylide complexes

Muhammad Younus, Nicholas J. Long, Paul R. Raithby, Jack Lewis

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56 Citations (SciVal)


Terminal metal acetylide complexes trans-[(dppm)2(Cl)Os(-CC-R-CC-H)] (dppm=Ph2PCH2PPh2, R=-p-C6H4- (1), -p-C6H4-C6H4-p- (2)) and trans-[(Et3P)2(Ph)Pt(CC-p-C6H4-CCH)] (3) have been synthesised by the application of established synthetic routes. Acetylide bridged mixed-metal complexes trans-[(dppm)2(Cl)Os-CC-p-C6H 4-CC-Ru(Cl)(dppm)2] (4), trans-[(Et3P)2(Ph)Pt-CC-p-C6H 4-CC-Ru(Cl)(dppm)2] (5), trans-[(Et3P)2(Ph)Pt-CC-p-C6H 4-CC-Ru(Ph3P)25-C 5H5)] (6) and trans-[(Et3P)2(Ph)Pt-CC-p-C6H 4-CC-Ru(Ph3P)25-C 5H4-CH3)] (7) have been formed by the reaction of 1, 2 and 3 with the appropriate metal chlorides. Complex 6 is less soluble in common organic solvents than the other complexes but this insolubility has been overcome by introducing a methylcyclopentadienyl group on the ruthenium centre to form complex 7. Complexes 1, 2, 4, 6 and 7 have shown reversible redox chemistry and in the di-metallic complexes, intramolecular electronic communication has been investigated by cyclic voltammetry. The shift in the lowest energy band in the UV-vis spectra of the mixed-metal complexes 4, 5, 6 and 7 is largely dependent on the various metal fragments.

Original languageEnglish
Pages (from-to)55-62
Number of pages8
JournalJournal of Organometallic Chemistry
Issue number1
Publication statusPublished - 10 Nov 1998


  • Acetylide
  • Electrochemistry
  • Osmium
  • Platinum
  • Ruthenium

ASJC Scopus subject areas

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


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