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[Pt]

Ceriotti1, Masciocchi, Macchi

  • 1Dipartimento di Chimica Inorganica, Metallorganica e Analitica e Centro CNR, Università di Milano, via G. Venezian 21, I-20133 Milano (Italy).

Angewandte Chemie (International Ed. in English)
|January 29, 2000
PubMed
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Carbonyl substitution reactions are key in forming high-nuclearity platinum carbonyl clusters. This study reveals a novel pathway involving nitrosyl ligands in cluster condensation.

Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • High-nuclearity metal carbonyl clusters are of interest for their unique electronic and structural properties.
  • Understanding cluster formation pathways is crucial for designing new materials.

Purpose of the Study:

  • To investigate the CO/NO substitution mechanism in the condensation of platinum carbonyl clusters.
  • To synthesize and characterize novel high-nuclearity platinum carbonyl clusters.

Main Methods:

  • Synthesis of platinum carbonyl clusters under specific reaction conditions.
  • Structural characterization using X-ray diffraction and spectroscopic techniques.

Main Results:

  • Demonstrated the intermediacy of CO/NO substitution in the condensation of [Pt(19)(CO)(22)](4-) to [Pt(38)(CO)(44)](2-).

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  • Synthesized two high-nuclearity carbonyl metal clusters.
  • Characterized a cluster containing an unprecedented nitrosyl ligand.

    • Conclusions:

    • CO/NO substitution plays a critical role in the formation of larger platinum carbonyl clusters.
    • The discovery of nitrosyl-containing clusters opens new avenues for cluster chemistry and materials design.