Design of dipicolinic acid ligands for the two-photon sensitized luminescence of europium complexes with optimized cross-sections

…, A Picot, PL Baldeck, C Andraud, O Maury

Index: D'Aleo, Anthony; Picot, Alexandre; Baldeck, Patrice L.; Andraud, Chantal; Maury, Olivier Inorganic Chemistry, 2008 , vol. 47, # 22 p. 10269 - 10279

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Citation Number: 74

Abstract

A new versatile family of chromophore-based dipicolinate ligands able to induce europium emission by the two-photon antenna effect was synthesized. Tuning the strength of the donor as well as the length of the π-conjugated backbone allows optimization of the two- photon absorption (TPA) cross-section, 775 GM at 740 nm for [Eu (L 5) 3] 3−, and a shift of the maximal TPA wavelength to the red.