Metal-organic framework composites with luminescent pincer platinum(II) complexes: 3MMLCT emission and photoinduced dehydrogenation catalysis

Pincer platinum(II) complexes are well documented to exhibit weak intermolecular interactions in the solid state and 77 K glassy solutions, leading to emissive triplet metal-metal-to-ligand charge transfer ((MMLCT)-M-3) excited states that often vanish in dilute solutions. In this work, metal-organic framework (MOF) materials are introduced to provide a solid solution environment for easy access to 3MMLCT excited states of pincer platinum(II) complexes. Phosphorescent composites Pt-II@MOFs (1-4) with matrix-dependent monomers and oligomer emission properties were obtained. These Pt-II@MOFs are efficient catalysts for photoinduced dehydrogenation reactions.