Photoredox Catalysis with Metal Complexes Made from Earth-Abundant Elements

Area of Science:

• Inorganic Chemistry
• Organic Chemistry
• Photochemistry

Background:

• Photoredox catalysis often utilizes precious metals like ruthenium and iridium.
• A growing trend focuses on developing catalysts from earth-abundant elements for sustainability.

Purpose of the Study:

• To review recent progress in earth-abundant metal complexes for photoredox catalysis.
• To discuss the application of these complexes in synthetic organic chemistry using visible light.

Main Methods:

• Summarizing advances in photoactive complexes of Cr(III), Fe(II), Cu(I), Zn(II), Zr(IV), Mo(0), and U(VI).
• Analyzing mechanistic aspects and reaction scopes.
• Reviewing recent developments in new photoactive metal complexes.

Main Results:

• Significant progress has been made in utilizing earth-abundant metal complexes in photoredox catalysis.
• These complexes are effective sensitizers and catalysts in visible-light-driven organic synthesis.
• A variety of reaction types and scopes have been demonstrated.

Conclusions:

• Earth-abundant metal complexes are viable and sustainable alternatives in photoredox catalysis.
• Continued development of these complexes will expand their utility in organic synthesis.
• The field shows strong potential for future advancements.