• DEEPMALA SINGHAL
• Dr. Alpana Gokhroo

The observed spectra of tripositive lanthanides ions can be explained by considering the transitions between the energy states of the 4fn configurations energy. These energy states can be calculated by digonalization of complete matrices. The absorbing spectra of highly absorbing amorphous materials which may be insoluble in solvents can be studied by technique of diffuse reflectance. In diffuse reflectance a well collimated incident beam is equally distributed in all directions after reflection from the metal surface. Various parameters Slater-Condon, Racah parameters are calculated. On the basic of which Nephelauxetic ratio of different complexes are calculated.

Slater-Condon parameters, Nephelauxetic ratio, Lanthanides and Diffuse Spectra

"To study Nephelauxetic Ratio of Praseodymium in Different Environments", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.699-702, June 2019, Available :http://www.jetir.org/papers/JETIR1906T89.pdf

"To study Nephelauxetic Ratio of Praseodymium in Different Environments", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp699-702, June 2019, Available at : http://www.jetir.org/papers/JETIR1906T89.pdf