Cooperation between p-Block Elements and Redox-Active Ligands: Stoichiometric and Catalytic Transformations

Area of Science:

• Catalysis
• Organometallic Chemistry
• Ligand Design

Background:

• Redox-active ligands facilitate electron transfer in catalysis, enabling access to multiple spin states.
• This mechanism reduces reaction barriers compared to single spin-state processes.
• Current applications are well-established for transition metals but underexplored for p-block elements.

Purpose of the Study:

• To highlight the design principles of redox-active ligand-supported catalysis.
• To review recent advancements and achievements in this catalytic approach.
• To identify existing shortcomings and future directions, particularly for p-block elements.

Main Methods:

• Conceptual review of redox-active ligand chemistry.
• Discussion of catalytic cycles involving multiple spin states.
• Analysis of catalyst design strategies for p-block elements.

Main Results:

• Redox-active ligands enable unique catalytic pathways by stabilizing radical intermediates.
• Catalytic transformations with reduced activation energies are achievable.
• Significant progress has been made, but the field, especially concerning p-block elements, requires further development.

Conclusions:

• Redox-active ligands offer a powerful strategy for designing efficient catalysts.
• The application of these ligands to p-block elements represents a largely untapped area with high potential.
• Further research is needed to overcome current limitations and fully realize the capabilities of p-block based redox-active catalysts.