Luminescent complexes have numerous uses including lighting, imaging, low-concentration detection, and photocatalysis. Two of the most desirable traits in luminescence applications are high quantum efficiency and tunability of spectroscopic properties. To this end, we have synthesized a new, highly luminescent EuII-containing azacryptate that provides insight into rational ligand design. The spectroscopic characterization of the complex yielded an unexpected shift in the excitation and emission that was subsequently explained using in-depth computational studies. The unique coordination environment and geometry of the complex was found to be responsible for the spectroscopic features and remarkable solution phase quantum yield for a EuII-containing complex.

Photophysical characterization of a highly luminescent divalent-lanthanide-containing azacryptate

256th National Meeting (2018)

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