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Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
A double cubane structure in organoplatinum(IV) chemistry
Muhieddine S Safa1, Michael C Jennings, Richard J Puddephatt
1Department of Chemistry, University of Western Ontario, London, Canada N6A 5B7.
Chemical Communications (Cambridge, England)
|March 12, 2009
Summary
The reaction of a platinum complex with hydrogen peroxide leads to ligand loss and the formation of a novel platinum-hydroxide cluster with an unexpected double cubane structure.
Area of Science:
- Organometallic Chemistry
- Coordination Chemistry
- Inorganic Chemistry
Background:
- The reactivity of dimethyl(1,2-di-2-pyridylethane)platinum(II) with oxidants is not fully understood.
- Understanding ligand behavior in platinum complexes is crucial for catalysis and materials science.
Purpose of the Study:
- To investigate the reaction of [PtMe2(dpe)] with hydrogen peroxide.
- To characterize the products formed, focusing on any novel structural motifs.
Main Methods:
- Reaction of [PtMe2(dpe)] with hydrogen peroxide in solution.
- Isolation and X-ray crystallographic analysis of the resulting solid-state products.
Main Results:
- The initial reaction yields a platinum-hydroxide species with ligand loss.
- Slow crystallization from the reaction mixture produced [{PtMe3OH.PtMe2(OH)2}2][PtMe2(CO3)(dpe)]2.
- The central cluster exhibits an unprecedented face-bridged double cubane structure.
Conclusions:
- The reaction of [PtMe2(dpe)] with H2O2 is complex, yielding unexpected structural outcomes.
- The formation of the double cubane cluster highlights novel self-assembly pathways in platinum chemistry.
- This finding expands the known structural diversity of platinum-hydroxide clusters.
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