A coordination polymer with a silylene-supported Pd₆ core as an efficient heterogeneous hydrogenation catalyst

Area of Science:

• Inorganic Chemistry
• Materials Science
• Catalysis

Background:

• Palladium clusters are valuable in catalysis.
• Developing stable and recyclable heterogeneous catalysts is crucial for sustainable chemistry.

Purpose of the Study:

• To synthesize a novel palladium coordination polymer.
• To evaluate its catalytic activity and stability in alkene hydrogenation.

Main Methods:

• Synthesis of a hexanuclear palladium cluster supported by silylene units.
• Linking the cluster with a ditopic isocyanide to form a coordination polymer.
• Testing the polymer as a heterogeneous catalyst for hydrogenation reactions.

Main Results:

• A coordination polymer with a retained Pd₆(SiPh₂)₂Cl₂ framework was successfully synthesized.
• The catalyst demonstrated good performance in hydrogenating various alkenes.
• Effective catalysis was observed in both organic and protic solvents, including water.
• The catalyst exhibited stability and recyclability over multiple hydrogenation cycles.

Conclusions:

• The synthesized palladium coordination polymer is a highly effective and reusable heterogeneous catalyst.
• Its performance in diverse solvent systems, including water, highlights its potential for green chemistry applications.