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

摘要

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 (³MMLCT) 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.