Trivalent praseodymium

Bowlby BE, Di Bartolo B (2003) Spectroscopy of Trivalent Praseodymium in Barium Yttrium Fluoride 106 193-208... 

For NaPr2Cl6, however, the XANES spectrum shows that there is only trivalent praseodymium present. Further evidence arises from the observation of the similarity of the lattice parameters of the (light green) Nao.32(Nao.i6Pro.84)Cl3 addition-substitution compound and of black Nao.5(Pr)Cl3 indicating that the latter should be written as Nao.5(Pr )Cl3(e )o.5-... 

Hasegawa Y, Tamura S, Imanaka N, Adachi G, Takano Y, Sekizawa K (2004) Trivalent praseodymium ion conducting solid electrolyte composite with NASICON type structure. J Alloys Compd 375 212-216... 

Sommerdijk JL, Bril A, de Jager AW (1974) Two photon luminescence with ultraviolet excitation of trivalent praseodymium. J Lumin 8 341-344... 

Yen, W.M., Scott, W.C., Schawlow, A.L., 1964. Phonon-induced relaxation in excited optical states of trivalent praseodymium in LaFs. Phys. Rev. 136 (lA), A271-A283. 

The mean deviation resulting from experimental/calculated fits is usually satisfactory. The accuracy does not depend only on the number of levels (for instance 91 versus 364 for trivalent praseodymium and neodymium, respectively), but also on the strength of the crystal field. While the deviation is 6cm and 10cm for Pr " and Nd doped in LaCls respectively, it rises up to 31 and 15cm in Y2O3. 

Garcia and Faucher (1989) applied configuration interaction (4f /4f5d) to the deviant case of trivalent praseodymium in PrCl3 (the problem of the D2 level) because of the reduced size of the system the high symmetry imposes no more than four even cfp and two odd cjp. Most of the discrepancy of the D2 multiplet is eliminated with only two... 

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