Photostable triphenylmethyl-based diradicals with a degenerate singlet-triplet ground state and strong photoluminescence
Mona E. Arnold, Anika Lebzelter, Philipp Thielert, Rémi Blinder, Jonas Schmid, Julia Zolg, Emanuele Spatola, Fedor Jelezko, Max von Delius, Sabine Richert, Alexander J. C. Kuehne
Abstract
Buchwald-Hartwig coupling. The magnetic and optical properties of the resulting molecules are comprehensively characterized by electron paramagnetic resonance EPR, UV-vis absorption, and photoluminescence spectroscopy. This work unites the robust photophysics of discrete TTM radicals with the electronic versatility of donor-bridged multi-spin systems, offering a promising design strategy for functional open-shell emitters.
Topics & Concepts
Singlet stateDegenerate energy levelsPhotoluminescenceGround stateTriplet statePhotochemistryState (computer science)ChemistryComputational chemistryMaterials sciencePhysicsMoleculeOptoelectronicsQuantum mechanicsExcited stateComputer scienceOrganic chemistryAlgorithmSynthesis and Properties of Aromatic CompoundsMolecular Junctions and NanostructuresLuminescence and Fluorescent Materials