Substitutional photoluminescence modulation in adducts of a europium chelate with a range of alkali metal cations: a gas-phase study

The Journal of Physical Chemistry. a
Jean-Francois GreischDetlef Schooss

Abstract

We present gas-phase dispersed photoluminescence spectra of europium(III) 9-hydroxyphenalen-1-one (HPLN) complexes forming adducts with alkali metal ions ([Eu(PLN)3M](+) with M = Li, Na, K, Rb, and Cs) confined in a quadrupole ion trap for study. The mass selected alkali metal cation adducts display a split hypersensitive (5)D0 → (7)F2 Eu(3+) emission band. One of the two emission components shows a linear dependence on the radius of the alkali metal cation whereas the other component displays a quadratic dependence thereon. In addition, the relative intensities of both components invert in the same order. The experimental results are interpreted with the support of density functional calculations and Judd-Ofelt theory, yielding also structural information on the isolated [Eu(PLN)3M](+) chromophores.

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Citations

Sep 12, 2018·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Florian LiedyChristoph Riehn
Aug 23, 2016·Beilstein Journal of Nanotechnology·Yanhua LanMario Ruben
Jul 15, 2015·Beilstein Journal of Nanotechnology·Andrea MagriMario Ruben
May 15, 2014·The Journal of Physical Chemistry Letters·Jean-François GreischDetlef Schooss
Dec 2, 2014·The Journal of Physical Chemistry. a·Christof HolzerAnne-Marie Kelterer

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