Summary
This paper presents heterogeneous catalysts based on metal–organic frameworks and microporous polymers as supports for organometallic photocatalytic complexes. The authors demonstrate that molecular chemistry principles, specifically the Hammett parameter for electronic ligand effects, accurately predict catalytic performance in both homogeneous and heterogenized systems, suggesting that rational design of porous catalyst supports can be guided by well-established chemical principles rather than requiring empirical optimisation of framework properties.
UK applicability
This work is primarily relevant to UK-based chemical and materials science research communities developing advanced catalytic materials. Its application to UK agricultural and food systems research is indirect and would require translation of catalytic principles to agronomically relevant processes.
Key measures
Hammett parameter values, catalytic activity measurements, electronic effects of bipyridine ligands in heterogenized systems
Outcomes reported
The study demonstrated that heterogenized catalysts based on metal–organic frameworks and microporous polymers exhibit the same linear correlation between ligand electronic effects (Hammett parameter) and catalytic activity as their homogeneous counterparts. This finding indicates that the local electronic environment around the active catalytic centre, rather than long-range framework structure, is the primary determinant of catalyst performance.
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