On the Synthesis, Structure and Reactivity of ^Mes DPM Triel Dihydrides

Herein, the simple synthesis of triel dihydride complexes with the sterically demanding 1,5,9‐trimesityldipyrromethene ( Mes DPM) ligand is reported. With these compounds, reactivity studies are carried out, opening access to new classes of Mes DPM triels. All compounds are fully characterized by standard analytic methods such as NMR, IR, and UV/vis spectroscopy as well as mass spectrometry. In addition, the molecular structures in solid state are determined by single‐crystal X‐ray diffraction analysis. In some instances, green fluorescence can also be observed upon solar irradiation, which prompted further investigations of the photoluminescence behavior.