Article ID Journal Published Year Pages File Type
1236891 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2006 5 Pages PDF
Abstract

The amplitude and phase of the photoacoustic (PA) signal generated in the rare earth complex powder of Nd(III)-acetylacetonate (Nd(AA)3) were examined. By using the reasonably simplified formula about phase angle at the wavelengths assigned to π–π* transition of ligand and f–f transitions of Nd3+, the instrumental contribution to phase angle at different chopping frequency was calculated. The frequency dependence of sample phase angle, the relative phase angle shift caused by instrumental factors and the calculation of triplet state lifetime of sample under study were also discussed. Being independent of sample, the instrumental contribution to phase angle was regarded as a parameter representing the situations of instruments and measurement and it became an approach to calculate the relaxation time of ligand in rare earth complex.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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