Calculation of Energy Parameters for Interactions of Nd(III) and Pr(III) with DL-Serine by Using Their Absorption Spectra As a Probe in the Presence and Absence of Zn(II) in Different Solvents

Abstract

In this study, the energy parameters such as Slater–Condon (F_K) factor, Lande spin-orbit coupling constant (${{\xi }_{{4f}}}$), nephelauxetic ratio (β), bonding parameter (b^1/2), and percent covalency (δ), have been evaluated involving the interaction between Nd(III) and Pr(III) with DL-serine by using their absorption spectra as a probe. The effect of Zn(II) was also investigated on their interaction in different solvents namely DMF, dioxane, methanol and acetonitrile. The variation in the values of these parameters were observed which revealed the formation of a bond between Nd(III) and DL-serine and also between Pr(III) and DL-serine. Further, oscillatory strength and Judd–Ofelt parameters were also calculated for every concern transitions. In both the interactions, it has been found that the solvent DMF promoted 4f–4f electric dipole intensity most out of the four different solvents.