Quenching of IR Luminescence of Erbium, Neodymium, and Ytterbium β-Diketonate Complexes by Ligand C−H and C−D Bonds

Abstract

The effect of CH and CD quenching on the luminescence lifetime of Er3+, Nd3+, and Yb3+ in the Cs[Ln(HFA)4] system has been quantified, and we have shown that for Er3+ ions the quenching is dominated by the nearest neighbor CH oscillators, whereas for Nd3+ ions the roles of more distant CH oscillators and nearest neighbor CD oscillators are important.