Little Tetrahedra

Little Tetrahedra

Author: David Bradley

Pyridine ligands are widely used for making transition metal complexes for catalysis and metal-organic frameworks (MOFs). 

Canadian chemists reasoned that the lack of interest in tetrahedral ligand geometries was due to synthetic difficulties.

They now have remedied that situation using a robust tetraphenylmethane framework as the core, which they suggest would overcome synthetic issues. They made tetra-(4-(4-pyridyl)phenyl)methane, TPPM, from simple starting materials and describe this as an excellent, rigid building block for MOFs with potential for catalysis, separations, and gas storage.

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