| Abstrakt: |
It is said that the -4f shells behave as core and are least perturbed by changes around metal ion surrounding. However, there are evidences that-4f shells partially involved in direct moderator interaction. A systematic investigation on the plasmonic (electronic) spectral studies of some Rare Earths[RE(III).Mod] where, RE(III)= Pr(III),Nd(III) and Mod(moderator) = Y(III),La(III),Gd(III) and Lu(III), increased moderator concentration from 0.01 mol dm-3 to 0.025 mol dm-3 keeping the metal ion concentration at 0.01mol dm-3 have been carried out. Variations in oscillator strengths (f), Judd-Ofelt parameters (Tλ),inter-electronic repulsion Racah parameters (δk),nephelauxetic ratio (β), radiative parameters (SED,AT,βR,TR). The values of oscillator strengths and Judd-Ofelt parameters have been discussed in the light of It is said that the -4f shells behave as core and are least perturbed by changes around metal ion surrounding. However, there are evidences that-4f shells partially involved in direct moderator interaction. A systematic investigation on the plasmonic (electronic) spectral studies of some Rare Earths[RE(III).Mod] where, RE(III)= Pr(III),Nd(III) and Mod(moderator) = Y(III),La(III),Gd(III) and Lu(III), increased moderator concentration from 0.01 mol dm-3 to 0.025 mol dm-3 keeping the metal ion concentration at 0.01mol dm-3 have been carried out. Variations in oscillator strengths (f), Judd-Ofelt parameters (T),inter-electronic repulsion Racah parameters (dEk),nephelauxetic ratio, radiative parameters (SED,AT,R,TR). The values of oscillator strengths and Judd-Ofelt parameters have been discussed in the light of coordination number of RE(III) metal ions, denticity and basicity of the moderators. The [RE(III).Mod] bonding pattern has been studies in the light of the change in Racah parameters and nephelauxetic ratio. [ABSTRACT FROM AUTHOR] |
