Abstract
A new synthesis of trisfluoroacetylactone (TFA) and hexafluoroacetylactone (HFA) Nd complexes: Nd(TFA) 3 · 2H 2O and Hd(HFA) 3 · 2H 2O is reported. The photoacoustic (PA) spectra in the 300–800 nm region of the compounds NdCl 3 · 6H 2O, Nd(TFA) 3 · 2H 2O and Nd(HFA) 3 · 2H 2O are reported. The PA absorption bands are assigned and their relative intensities represented by intensity branching vectors are calculated. The perturbation of the ligand on the energy levels of Nd 3+ ion is discussed and a model of the relaxation process of Nd(HFA) 3 · 2H 2O is proposed based on its PA and absorption spectra.
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