Calculation of Shifting in Energy Levels for Ln3+ (Pr3+, Nd3+) Complex’s with Hetero cyclic Ligands in Solution state by using Optical Absorption Spectra
Keywords:
Hetero Cyclic Ligands, Optical Absorption Spectra, Energy Levels, UV VisibleAbstract
The absorption spectra of Ln3+ (Pr3+ and Nd3+) were investigated in UV visible regions at room temperature. Theoretical analysis of the results including the effects of configuration interaction is discussed. Good correlation between calculated and observed free-ion level energies established. Comparison of the levels observed in the solution with reported gaseous free-ion levels indicated that there is little change in the J -level structure in the 4fn configuration. Excellent agreement between observed and calculated energies is obtained.
References
Wybourne BG. Spectroscopic properties of rare earths. New York: Interscience Publishers; 1965.
Goulden CH. Methods of statistical analysis. Bombay: Asian Publishing House; 1964.
Wong EY. J Chem Phys. 1961;35:544; Adams R. Organic reactions. Vol. 3. New York: John Wiley & Sons; 1959. p. 240.
Osowole AA. Exploring the DNA interactions, FGF growth receptor interaction and biological screening of metal(II) complexes of NNN donor ligand derived from 2-(aminomethyl)benzimidazole. Int J Biol Macromol. 2016:42–89.
Ajitha PS, Nair MKM. Antibacterial study of Schiff base complexes of some lanthanide nitrates. Res J Pharm Biol Chem Sci. 2010;1(1):449–454.
Judd BR. Optical absorption intensities of rare-earth ions. Phys Rev. 1962;127(3):750–761.
Huang CH, editor. Rare earth coordination chemistry: fundamentals and applications. Oxford: Wiley-Blackwell; 2010.
Binnemans K, Van Deun R, Görller-Walrand C, Adam JL. Spectroscopic properties of trivalent lanthanide ions in fluorophosphate glasses. J Non-Cryst Solids. 1998;238(1–2):11–29.
Sinha SP. Spectroscopic investigations of some neodymium complexes. Spectrochim Acta. 1966;22(1):57–62.
Jørgensen CK, Pappalardo R, Schmidtke HH. Do the "ligand field" parameters in lanthanides represent weak covalent bonding? J Chem Phys. 1963;39(6):1422–1430.
Gautam MP, Yadav A, Limaye SN. Spectral analysis of praseodymium(III) complexes. Asian J Chem. 1998;10(3):415–418.
Ojha M, Yadav R, Jatolia SN. Spectral investigation and calculation of bonding parameters for Nd(III) system with 2-amino benzothiazole derivatives and codoping of Ca²⁺, Mg²⁺, Sr²⁺ metal ions. Eur Chem Bull. 2022;11(11):1656–1662. doi:10.53555/ecb/2022.11.11.162
Ojha M, Suresh Kumar, Jatolia SN. Micellar spectrophotometric studies of doped Pr(III) ion and codoped with Ca²⁺, Mg²⁺, Sr²⁺ ions with 2-HBT system. Int J Glob Res Innov Technol. 2024;2(1):7–10.
Ojha M, Laxmi S, Kumawat V, Mohapatra SC, Bhandari HS, Bhojak N, Jatolia SN. Effect of co-doped alkali earth metals Ca²⁺, Mg²⁺, Sr²⁺ ions on the spectral parameter for rare earth, Pr(III)-2-Amino Benzothiazole doped system in the micellar medium. J Mater NanoSci. 2024;11(1):953:1–6.
Laxmi S, Kumawat V, Arya AK, Mohapatra SC, Bhojak N, Jatolia SN. Micellar studies of doped systems of Ho(III) with imidazole derivatives. J Mol Struct. 2025;1338:142249. doi:10.1016/j.molstruc.2025.142249.
