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Vol. 38 No. 9 (2026): Vol 38 Issue 9 Year 2026

Copyright (c) 2026 Zevivonü Thakro, Mhasiriekho Ziekhrü, Shepazo Chizo, M Indira Devi

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Theoretical Analysis of Multimetal Complexation of Pr(III):L-leucine:Mg(II): Thermo-Kinetic Studies of the Reaction Pathways

https://doi.org/10.14233/ajchem.2026.36509
Zevivonü Thakro
Department of Chemistry, Nagaland University, Lumami-798627, India
https://orcid.org/0009-0000-5268-0827
Mhasiriekho Ziekhrü
Department of Chemistry, Nagaland University, Lumami-798627, India
https://orcid.org/0000-0002-8570-4810
Shepazo Chizo
Department of Chemistry, Nagaland University, Lumami-798627, India
https://orcid.org/0009-0002-3108-9418
M. Indira Devi
Department of Chemistry, Nagaland University, Lumami-798627, India
https://orcid.org/0009-0005-2340-1282

Corresponding Author(s) : M. Indira Devi

indira@nagalanduniversity.ac.in

Asian Journal of Chemistry, Vol. 38 No. 9 (2026): Vol 38 Issue 9 Year 2026

Abstract

The 4f-4f absorption spectra of Pr3+ were employed as sensitive probes to investigate the interaction of Pr3+ with L-leucine in the presence and absence of Mg2+ in various aquated organic solvents, namely DMF, acetonitrile (ACN), dioxane and methanol. The interaction of Pr3+ with L-leucine was evaluated through the determination of spectroscopic energy parameters, including the Slater-Condon parameters (Fk), spin-orbit coupling parameter (ξ4f), bonding parameter (b1/2), nephelauxetic ratio (β), percentage covalency (δ) and Racah parameter (Eᵏ). These parameters were used to assess changes in the electronic environment and the nature of metal–ligand interactions. Variations in the absorption intensity parameters, including the oscillator strengths (P) of the individual 4f-4f transitions and Judd-Ofelt intensity parameters (Tλ), provided further evidence for the coordination of L-leucine with Pr3+. Upon addition of L-leucine, the characteristic absorption bands of Pr3+ exhibited bathochromic shifts accompanied by hyperchromic effects, which confirmed the changes in the coordination environment and electronic structure of the metal ion. The influence of Mg2+ on the Pr3+–L-leucine interaction was further examined to elucidate its role in the complexation process. Kinetic and thermodynamic investigations were subsequently performed to determine the mechanism, stability and energetics of complex formation in the different solvent systems. The combined spectroscopic, kinetic and thermodynamic results provide insight into the nature of Pr3+–L-leucine interactions and the influence of Mg2+ and solvent environment on their complexation behaviour.

Keywords

Oscillator strength Pseudohypersensitive Thermodynamics L-leucine Lanthanide
(1)
Thakro, Z.; Ziekhrü, M.; Chizo, S.; Devi, M. I. Theoretical Analysis of Multimetal Complexation of Pr(III):L-leucine:Mg(II): Thermo-Kinetic Studies of the Reaction Pathways. ajc 2026, 38, 2398-2408.
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References
  1. A.K. Pathak, D. Paudyal, Y. Mudryk and V.K. Pecharsky, Phys. Rev. B, 96, 064412 (2017); https://doi.org/10.1103/PhysRevB.96.064412
  2. K. Niu, F. Yang, T. Gaudin, H. Ma and W. Fang, Inorg. Chem., 60, 9552 (2021); https://doi.org/10.1021/acs.inorgchem.1c00657
  3. P. Soni, G. Pagare and S.P. Sanyal, J. Phys. Chem. Solids, 71, 1491 (2010); https://doi.org/10.1016/j.jpcs.2010.07.014
  4. C. Chen and H. Li, Z. Anorg. Allg. Chem., 645, 888 (2019); https://doi.org/10.1002/zaac.201900009
  5. K. Bernot, C. Daiguebonne, G. Calvez, Y. Suffren and O. Guillou, Acc. Chem. Res., 54, 427 (2021); https://doi.org/10.1021/acs.accounts.0c00684
  6. J.C.G. Bünzli, J. Coord. Chem., 67, 3706 (2014); https://doi.org/10.1080/00958972.2014.957201
  7. Y. Yang, X. Hu, Z. Yang and W. Huang, Adv. Funct. Mater., 35, 2412970 (2025); https://doi.org/10.1002/adfm.202412970
  8. N. Bendangsenla, T. Moaienla, T. David Singh, C. Sumitra, N. Rajmuhon Singh, M. Indira Devi, Spectrochim. Acta A Mol. Biomol. Spectrosc., 103, 160 (2013); https://doi.org/10.1016/j.saa.2012.11.011
  9. T.D. Singh, C. Sumitra, N. Yaiphaba, H.D. Devi, M.I. Devi and N.R. Singh, Spectrochim. Acta A Mol. Biomol. Spectrosc., 61, 1219 (2005); https://doi.org/10.1016/j.saa.2004.06.044
  10. C. Berthomieu, M. Martin, J. Aupiais, T. Barré, L. Daronnat, J. Pansier, N. Brémond, D. Lemaire, A. Thawari, M. Levier, L. Berthon and S. Sauge-Merle, Eur. J. Inorg. Chem., 29, e202500468 (2026); https://doi.org/10.1002/ejic.202500468
  11. G. Lanza, Z. Varga, M. Kolonits and M. Hargittai, J. Chem. Phys., 128, 074301 (2008); https://doi.org/10.1063/1.2828537
  12. J.M. Han, S.J. Jeong, M.C. Park, G. Kim, N.H. Kwon, H.K. Kim, S.H. Ha, S.H. Ryu and S. Kim, Cell, 149, 410 (2012); https://doi.org/10.1016/j.cell.2012.02.044
  13. J.A.B. Pedroso, T.T. Zampieri and J. Donato Jr., Nutrients, 7, 3914 (2015); https://doi.org/10.3390/nu7053914
  14. L. Fu, A. Bruckbauer, F. Li, Q. Cao, X. Cui, R. Wu, H. Shi, M.B. Zemel and B. Xue, Metabolism, 64, 845 (2015); https://doi.org/10.1016/j.metabol.2015.03.007
  15. C.J. Lynch and S.H. Adams, Nat. Rev. Endocrinol., 10, 723 (2014); https://doi.org/10.1038/nrendo.2014.171
  16. N.E. Cummings, E.M. Williams, I. Kasza, E.N. Konon, M.D. Schaid, B.A. Schmidt, C. Poudel, D.S. Sherman, D. Yu, S.I. Arriola Apelo, S.E. Cottrell, G. Geiger, M.E. Barnes, J.A. Wisinski, R.J. Fenske, K.A. Matkowskyj, M.E. Kimple, C.M. Alexander, M.J. Merrins and D.W. Lamming, J. Physiol., 596, 623 (2018); https://doi.org/10.1113/JP275075
  17. B. Dhanalakshmi, B. Padmadevi and G. Suresh, J. Mater. Sci. Mater. Electron., 37, 513 (2026); https://doi.org/10.1007/s10854-026-16922-9
  18. N. Ranjana Devi, B. Huidrom and N. Rajmuhon Singh, Spectrochim. Acta A Mol. Biomol. Spectrosc., 96, 370 (2012); https://doi.org/10.1016/j.saa.2012.05.038
  19. Z. Thakro, M.T. Ao, C. Imsong, J. Sanchu, M. Ziekhrü and M.I. Devi, Eur. Phys. J. Plus, 137, 608 (2022); https://doi.org/10.1140/epjp/s13360-022-02765-w
  20. U. Gröber, J. Schmidt and K. Kisters, Nutrients, 7, 8199 (2015); https://doi.org/10.3390/nu7095388
  21. M. Pelczyńska, M. Moszak and P. Bogdański, Nutrients, 17, 1714 (2022); https://doi.org/10.3390/nu14091714
  22. G.K. Schwalfenberg and S.J. Genuis, Scientifica, 2017, 4179326 (2017); https://doi.org/10.1155/2017/4179326
  23. K.K. Gangu, S. Maddila, S.N. Maddila and S.B. Jonnalagadda, Molecules, 21, 1281 (2016); https://doi.org/10.3390/molecules21101281
  24. M.F. Bush, J. Oomens, R.J. Saykally and E.R. Williams, J. Am. Chem. Soc., 130, 6463 (2008); https://doi.org/10.1021/ja711343q
  25. F. Costanzo, R.G. Della Valle and V. Barone, J. Phys. Chem. B, 109, 23016 (2005); https://doi.org/10.1021/jp055271g
  26. M. Remko, D. Fitz, R. Broer and B.M. Rode, J. Mol. Model., 17, 3117 (2011); https://doi.org/10.1007/s00894-011-1000-0
  27. A.L. Sobolewski, D. Shemesh and W. Domcke, J. Phys. Chem. A, 113, 542 (2009); https://doi.org/10.1021/jp8091754
  28. J.C.G. Bünzli and C. Piguet, Chem. Rev., 102, 1897 (2002); https://doi.org/10.1021/cr010299j
  29. A.M. Măciucă, A.C. Munteanu and V. Uivarosi, Molecules, 25, 1347 (2020); https://doi.org/10.3390/molecules25061347
  30. C. Sumitra, T.D. Singh, M.I. Devi and N.R. Singh, J. Alloys Compd., 451, 365 (2008); https://doi.org/10.1016/j.jallcom.2007.04.153
  31. G.S. Ofelt, J. Chem. Phys., 37, 511 (1962); https://doi.org/10.1063/1.1701366
  32. B.R. Judd, Phys. Rev., 127, 750 (1962); https://doi.org/10.1103/PhysRev.127.750
  33. M. Luo, B. Chen, X. Li, J. Zhang, S. Xu, X. Zhang, Y. Cao, J. Sun, Y. Zhang, X. Wang, Y. Zhang, D. Gao and L. Wang, Phys. Chem. Chem. Phys., 22, 25177 (2020); https://doi.org/10.1039/D0CP04379F
  34. K. Binnemans and C. Görller-Walrand, Chem. Rev., 102, 2303 (2002); https://doi.org/10.1021/cr010287y
  35. J.H. Van Vleck, J. Phys. Chem., 41, 67(1937); https://doi.org/10.1021/j150379a006
  36. A.A. Kornienko, A.A. Kaminskii and E.B. Dunina, Phys. Status Solidi (b), 157, 267 (1990); https://doi.org/10.1002/pssb.2221570127
  37. Z. Thakro, J. Sanchu, C. Imsong and M. Indira Devi, Chem. Phys. Impact, 4, 100078 (2022); https://doi.org/10.1016/j.chphi.2022.100078
  38. Y. Tian, B. Chen, R. Hua, J. Sun, L. Cheng, H. Zhong, X. Li, J. Zhang, Y. Zheng, T. Yu, L. Huang and H. Yu, J. Appl. Phys., 109, 053511 (2011); https://doi.org/10.1063/1.3551584
  39. J.L. Ryan and C.K. Jørgensen, J. Phys. Chem., 70, 2845 (1966); https://doi.org/10.1021/j100881a021
  40. M.S.A. Munna, T. Hossain, M.S. Islam, O.T. Mefford, H. Ahmad and M.M. Rahman, RSC Adv., 16, 11793 (2026); https://doi.org/10.1039/D5RA09579D
  41. Y.F. Zhao, H. Bin Chu, F. Bai, D.Q. Gao, H.X. Zhang, Y.S. Zhou, X.Y. Wei, M.N. Shan, H.Y. Li and Y.L. Zhao, J. Organomet. Chem., 716, 167 (2012); https://doi.org/10.1016/j.jorganchem.2012.06.031
  42. L. Sorace, C. Benelli and D. Gatteschi, Chem. Soc. Rev., 40, 3092 (2011); https://doi.org/10.1039/c0cs00185f
  43. S. Chizo, V. Sapu, S. Singha and M.I. Devi, J. Solution Chem., 55, 1123 (2026); https://doi.org/10.1007/s10953-025-01545-1
  44. N. Bendangsenla, T. Moaienla, T. David Singh, C. Sumitra, N. Rajmuhon Singh and M. Indira Devi, Spectrochim. Acta A Mol. Biomol. Spectrosc., 103, 160 (2013); https://doi.org/10.1016/j.saa.2012.11.011
  45. J.B. Gruber, G.W. Burdick, S. Chandra and D.K. Sardar, J. Appl. Phys., 108, 023109 (2010); https://doi.org/10.1063/1.3465615
  46. R.D. Peacock, The intensities of lanthanide f ↔ f transitions, In: Rare Earths, Structure and Bonding, Rare Earths, Springer, Berlin, Heidelberg, vol 22, pp. 83-122 (1975).
  47. W.T. Carnall, P.R. Fields and K. Rajnak, J. Chem. Phys., 49, 4447 (1968); https://doi.org/10.1063/1.1669895
  48. C. Victory Devi and N. Rajmuhon Singh, Arab. J. Chem., 10, S2124 (2017); https://doi.org/10.1016/j.arabjc.2013.07.044
  49. A.A. Khan, H.A. Hussain and K. Iftikhar, Spectrochim. Acta A Mol. Biomol. Spectrosc., 60, 2087 (2004); https://doi.org/10.1016/j.saa.2003.10.042
  50. T. Moaienla, T.D. Singh, N.R. Singh and M.I. Devi, Spectrochim. Acta A Mol. Biomol. Spectrosc., 74, 434 (2009); https://doi.org/10.1016/j.saa.2009.06.039
  51. N. Bendangsenla, T. Moainla, J. Sanchu and M.I. Devi, J. Mater. Sci. Chem. Eng., 6, 169 (2018); https://doi.org/10.4236/msce.2018.67018
  52. M. Ziekhrü, Z. Thakro, C. Imsong, J. Sanchu and M.I. Devi, Polyhedron, 200, 115099 (2021); https://doi.org/10.1016/j.poly.2021.115099
  53. N. Bendangsenla, M.I. Devi, T. Moaienla and R. Zatsu, J. Adv. Chem. Sci., 4, 556 (2018); https://doi.org/10.30799/jacs.182.18040201
  54. Z.A. Taha, A.K. Hijazi and W.M. Al Momani, J. Mol. Struct., 1220, 128712 (2020); https://doi.org/10.1016/j.molstruc.2020.128712
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Author Biographies

Zevivonü Thakro, Department of Chemistry, Nagaland University, Lumami-798627, India

Department of Chemistry, Nagaland University, Lumami, Nagaland, India

Mhasiriekho Ziekhrü, Department of Chemistry, Nagaland University, Lumami-798627, India

Department of Chemistry, Nagaland University, Lumami, Nagaland, India

Shepazo Chizo, Department of Chemistry, Nagaland University, Lumami-798627, India

Department of Chemistry, Nagaland University, Lumami, Nagaland, India

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