Antiprotozoal Pt(II) Complexes as Luminophores Bearing Monodentate P/As/Sb-Based Donors: An X-ray Diffractometric, Photoluminescence, and 121Sb-Mössbauer Spectroscopic Study with TD-DFT-Guided Interpretation and Predictive Extrapolation toward Bi
Stefan Buss,
Lukas Ketter,
Dana Brünink
et al.
Abstract:In this study, it is demonstrated
that the radiative
rate constant
of phosphorescent metal complexes can be substantially enhanced using
monodentate ancillary ligands containing heavy donor atoms. Thus,
the chlorido coligand from a Pt(II) complex bearing a monoanionic
tridentate C^N*N luminophore ([PtLCl]) was replaced by
triphenylphosphane (PPh3) and its heavier pnictogen congeners
(i.e., PnPh3 to yield [PtL(PnPh
3
)]). Due to the high tridentate-ligand-centered
character of the excited states, the P-relate… Show more
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