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Related Experiment Videos

Heteronuclear Hexaplatinum Cluster Complexes: Structure as a Function of Electron Count.

Greg J. Spivak1, Jagadese J. Vittal, Richard J. Puddephatt

  • 1Department of Chemistry, University of Western Ontario, London, Canada N6A 5B7.

Inorganic Chemistry
|October 24, 2001
PubMed
Summary

This study explores reactions of an 84-electron hexaplatinum cluster with various metalloligands, yielding new platinum-metal clusters with diverse electron counts. Characterization confirms the structures of these novel platinum cluster complexes.

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Area of Science:

  • Inorganic Chemistry
  • Organometallic Chemistry
  • Materials Science

Background:

  • Hexapatinum clusters are complex structures with unique electronic properties.
  • Understanding reactivity of these clusters is key to developing new materials and catalysts.

Purpose of the Study:

  • To investigate the reactivity of the 84-electron hexaplatinum cluster [Pt(6)(&mgr;-CO)(6)(&mgr;-dppm)(3)] with various metalloligands.
  • To synthesize and characterize novel multinuclear platinum-metal cluster complexes.
  • To explore the influence of different metalloligands on the electron count and structure of platinum clusters.

Main Methods:

  • Reaction of the hexaplatinum cluster with 0-electron and 2-electron metalloligands.
  • Oxidation of mercury-containing platinum clusters.

Related Experiment Videos

  • Reaction with anionic iridium carbonyl complexes.
  • Characterization using Nuclear Magnetic Resonance (NMR) and Infrared (IR) spectroscopies.
  • X-ray structure determination for one of the synthesized clusters.

    • Main Results:

    • The 84-electron hexaplatinum cluster reacts with various metalloligands (LM(+), InX(3), Tl(+), Hg) to form new clusters with electron counts ranging from 84 to 88.
    • Oxidation of a mercury cluster yields an 86-electron cluster.
    • Reaction with an iridium carbonyl complex produces a 98-electron anionic cluster, which can be further functionalized.
    • New cluster complexes were successfully synthesized and characterized.

    Conclusions:

    • The 84-electron hexaplatinum cluster exhibits versatile reactivity towards a range of metalloligands.
    • This reactivity allows for the controlled synthesis of novel platinum-metal clusters with tunable electron counts.
    • The findings expand the scope of known hexapatinum cluster chemistry and provide insights into cluster assembly.