Molybdenum in enzymatic and heterogeneous catalysis

Area of Science:

• Catalysis
• Bioinorganic Chemistry
• Materials Science

Background:

• Molybdenum's active sites in enzymes and catalysts share chemical similarities.
• Oxomolybdenum(VI) compounds and molybdenum disulfide are key catalytic species.

Purpose of the Study:

• To describe the common chemistry of molybdenum in enzymes and heterogeneous catalysts.
• To assess the transferability of catalytic understanding between these systems.

Main Methods:

• Review of oxomolybdenum(VI) catalyzed oxidation reactions.
• Analysis of molybdenum disulfide and nitrogenase catalyzed hydrogenation.
• Examination of acid-base and redox chemistry of molybdenum.

Main Results:

• Oxomolybdenum(VI) species catalyze selective hydrocarbon oxidation.
• Molybdenum disulfide and nitrogenase catalyze hydrogenation via lower-valent molybdenum coordinated by sulfur.
• Shared principles of molybdenum-sulfur chemistry are evident in both enzyme and catalyst systems.

Conclusions:

• Understanding molybdenum's role in enzymatic catalysis can inform heterogeneous catalyst design.
• The acid-base and redox properties of molybdenum are central to its catalytic activity.
• Further research can bridge the gap between bio- and chemocatalysis involving molybdenum.