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Updated: Feb 4, 2026
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The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
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Triphos-Fe dinitrogen and dinitrogen-hydride complexes: relevance to catalytic N2 reductions
Anthony Cavaillé1, Benjamin Joyeux1, Nathalie Saffon-Merceron2
1Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France. mezailles@chimie.ups-tlse.fr.
Chemical Communications (Cambridge, England)
|October 6, 2018
Summary
Iron complexes were reduced to form new iron-dinitrogen compounds. One complex efficiently catalyzes nitrogen functionalization under ambient conditions, showing promise for sustainable chemistry.
Area of Science:
- Organometallic Chemistry
- Catalysis
- Inorganic Chemistry
Background:
- Iron complexes are crucial in catalysis.
- Developing efficient and sustainable catalysts is a key research area.
- Nitrogen fixation and functionalization are important chemical transformations.
Purpose of the Study:
- To synthesize and characterize novel iron-dinitrogen complexes.
- To investigate the reactivity of these complexes, including protonation and reduction.
- To evaluate the catalytic activity of the iron complexes in nitrogen functionalization.
Main Methods:
- Two-electron reduction of iron complexes [(PRP2Cy)Fe(Cl)2] to yield dinitrogen complexes [(PRP2Cy)Fe(N2)2].
- Protonation and reduction of the dinitrogen complex to form a dihydrido iron species.
- Catalytic testing of the iron complex for N2 functionalization.
Main Results:
- Synthesis of iron-dinitrogen complexes [(PRP2Cy)Fe(N2)2] (4a-b).
- Formation of a dihydrido iron complex [(PPhP2Cy)Fe(N2)(H)2] (6) via protonation and reduction.
- Complex 4a demonstrated high efficiency as a monometallic iron catalyst for N2 functionalization to N(SiMe3)3 under atmospheric pressure.
Conclusions:
- Novel iron-dinitrogen and dihydrido iron complexes were successfully synthesized.
- The iron-dinitrogen complex 4a is a highly effective catalyst for N2 functionalization.
- This study contributes to the development of efficient, monometallic iron catalysts for nitrogen transformations.
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