Ossila 2-(2,4-Difluorophenyl)-5-methylpyridine B1911

2-(2,4-Difluorophenyl)-5-methylpyridine, also known as DFPMPy (CAS 583052-21-5), is a fluorinated arylpyridine building block supplied at >97% purity. Its methyl group improves solubility, while the pyridine nitrogen lone pair and the π-system of the phenyl ring allow it to bind a metal centre as a cyclometalating ligand.

Metal complexes built from this ligand perform well as visible-light photoredox catalysts. On irradiation, the excited complex undergoes metal-ligand charge transfer (MLCT), passes a single electron to a substrate, and then recovers an electron from another reagent to close the catalytic cycle.

The same complexes are prepared for light-emitting electrochemical cells, with photoluminescent quantum yields reported up to 93%. The two fluorine substituents lower the HOMO energy level and shift the emission spectrum. Arylpyridine-iridium complexes are also studied for hydrogen generation by water splitting and as photosensitizers in dye-sensitized solar cells (DSSCs).

• Cyclometalating ligand for preparing iridium and other metal complexes.
• Ligand for visible-light photoredox catalysts.
• Synthesis of emitters for light-emitting electrochemical cells and OLEDs.
• Photosensitizer complexes for dye-sensitized solar cells (DSSCs).
• Research on arylpyridine-iridium complexes for water splitting to generate hydrogen.
• Fluorinated heterocyclic building block for drug discovery.

• Product code: B1911
• M​olecular Weight: 205.21 g/mol
• Synonyms: DFPMPy
• Melting Point: 55 °C
• Classification / Family: Pyridine derivatives, Fluorinated building blocks, Heterocyclic building block, Dyes, DSSCs, Photocatalyst ligands, OLEDs

—

—