Photoacoustic Spectral Analysis of f-f Transitions of Neodymium Compounds with TFA and HFA

摘要

The photoacoustic (PA) spectra of neodymium oxide, Nd_2O_3(A type), and trisfluo- roacetylaction(TFA) and hexafluoroacetylactone (HFA) neodymium complexes Nd(TFA)_3·2H_2O and Nd(HFA)_3·2H_2O, are reported. The nephelauxetic ratio β, bonding pa- Rameter b~1/2, and Sinha parameter δ were calculated based on their PA spectra. The variation of These parameters and correlation of them with the nature of metal-ligand bounding were discussed. The intensity analysis of PA bands of f-f transitions of neodymium ion was carried out by calculat- Ing the intensity branching vector and the environmental effects on the f-f transitions of neodymi- Um ion were discussed also.