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Updated: May 22, 2026
10:51
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Molecular Structure of a Doubly Ring-Slipped Ruthenocene Intermediate.
Felix Wech1, Yury Torubaev2, Satoshi Takebayashi1
1Organometallic Chemistry Group, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan.
Journal of the American Chemical Society
|May 21, 2026
Summary
Researchers structurally characterized a doubly ring-slipped ruthenocene intermediate, crucial for understanding ferrocene derivative reactions. This kinetically trapped species provides insights into organometallic reaction mechanisms.
Area of Science:
- Organometallic Chemistry
- Inorganic Chemistry
- Reaction Mechanisms
Background:
- Ferrocene derivatives are vital in catalysis and materials science.
- Understanding the formation and deformation mechanisms of these compounds is key.
- Putative intermediates in these processes have been difficult to isolate and characterize.
Purpose of the Study:
- To structurally characterize a doubly ring-slipped ruthenocene intermediate.
- To elucidate the mechanism of η1 to η5 double ring-slippage in ruthenocene systems.
- To investigate the kinetic and thermodynamic factors governing this transformation.
Main Methods:
- Single-crystal X-ray crystallography was employed for structural determination.
- A pincer ligand was used to kinetically trap the unstable intermediate.
- Density Functional Theory (DFT) calculations were performed to confirm thermodynamic and kinetic properties.
Main Results:
- A doubly ring-slipped η1-cyclopentadienyl ruthenocene intermediate was successfully isolated and characterized.
- This intermediate quantitatively converted to a ruthenocene derivative with two η5-cyclopentadienyl ligands.
- A distinct η1, η5 complex was trapped as a possible intermediate during the η1 to η5 slippage.
Conclusions:
- The study provides the first structural evidence of a doubly ring-slipped ruthenocene intermediate.
- The findings offer critical insights into the reaction pathways of ferrocene derivatives.
- Kinetic trapping and computational methods are effective for studying transient organometallic species.
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