A Titanium-Based Metal-Organic Framework For Tandem Metallaphotocatalysis

Area of Science:

• Materials Science
• Catalysis
• Photochemistry

Background:

• Metal-organic frameworks (MOFs) offer high porosity and tunable structures for diverse applications.
• Photoactive MOFs are emerging as promising materials for catalytic processes.

Purpose of the Study:

• To construct and characterize a novel photoactive titanium-organic framework (MOF).
• To investigate its application as a tandem metallaphotocatalyst for light-mediated carbon-heteroatom cross-couplings.

Main Methods:

• In situ synthesis of MOF NU-2300 via imine condensation.
• Ex situ complexation with nickel salt to form NU-2300-Ni.
• Photophysical characterization using UV-vis and EPR spectroscopy.
• Evaluation of catalytic activity in light-mediated thioetherification.

Main Results:

• Successful synthesis of NU-2300 and its nickel complex, NU-2300-Ni.
• NU-2300-Ni functions as a tandem catalyst, with contributions from both Ti clusters and bipyridine linkers.
• The material demonstrated efficient and recyclable performance over five cycles of thioetherification.

Conclusions:

• This work expands MOF synthetic strategies and applications.
• NU-2300-Ni represents a recyclable, tandem metallaphotocatalyst for cross-coupling reactions.
• The findings contribute to the development of advanced catalytic materials.