Photoacoustic spectra of Pr3+, Nd3+, Gd3+ acetate complexes

The crystals of the complexes Pr(Ac) 3 .4H 2 O, Nd(Ac) 3 .4H 2 O, Gd(Ac) 3 .4H 2 O were synthesized and their Pa spectra determined firstly. Their PA spectra and absorption are interpreted. The fluorescence properties of Pr 3+ , Nd 3+ , Gd 3+ and the relaxation process models were studied by their PA spectra

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