Abstract
The equilibrium between unsaturated \(\beta \)-ketoester allyl acetoacetate and certain lanthanide ions (La3+, Pr3+, Nd3+, Sm3+, Gd3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+) was studied in mixed dioxane–water–ethyl acetate media. The formation of cationic 1:1 and 1:2 type complexes was shown and their formation constants were determined by potentiometric titration. For the 1:2 type complexes a molecular mechanics geometry optimization was performed and the bonding parameters were calculated on the basis of their electronic absorption spectra using the lanthanide aqua-ions as reference standards. The correlation between the nephelauxetic ratio and the relative metal–ligand bond length shortening due to the complexation was revealed and clarified.
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Katkova, M.A., Vitukhnovsky, A.G., Bochkarev, M.N.: Coordination compounds of rare-earth metals with organic ligands for electroluminescent diodes. Russ. Chem. Rev. 74, 1089–1109 (2005)
Eliseeva, S., Bünzli, J.-C.G.: Lanthanide luminescence for functional materials and bio-sciences. Chem. Soc. Rev. 39, 189–227 (2010)
Yatsimirskii, K.B., Kostromina, N.A., Sheka, Z.A., Davidenko, N.K., Kriss, E.E., Ermolenko, V.I.: Khimiya kompleksnykh soedinenii redkozemel’nykh elementov (Chemistry of the complex compounds of the rare-earth elements). Naukova Dumka, Kiev (1966)
Binnemans, K.: Rare-earth beta-diketonates. In: Gschneidner Jr, K.A., Bünzli, J.-C.G., Pecharsky, V.K. (eds.) Handbook on the Physics and Chemistry of Rare Earths, vol. 35, pp. 107–272. Elsevier, North-Holland (2005)
Huang, C. (ed.): Rare Earth Coordination Chemistry: Fundamentals and Applications. Wiley (Asia), Singapore (2010)
Sankha, B.S., Kapoor, R.N.: Organic compounds of samarium. II. Reactions of samarium isopropoxide with ethyl acetoacetate. Can. J. Chem. 44, 1369–1372 (1966)
Poluektov, N.S., Drobyazko, V.N., Beltyukova, S.V., Kononenko, L.I.: Spectrophotometric study of neodymium(III), holmium(III) and erbium(III) ions complexation with acetoacetic ester. Koord. Khimiya 3, 476–479 (1977)
Dutt, N.K., Rahut, S.: Chemistry of lanthanons—XXIII. The formation constsnts of the ethyl acetoacetato complexes of rare earth. J. Inorg. Nucl. Chem. 31, 3177–3179 (1969)
Dutt, N.K., Rahut, S.: Chemistry of lanthanons—XXVII. Rare earth complexes of ethylacetoacetate. J. Inorg. Nucl. Chem. 32, 2905–2909 (1970)
Hubert-Pfalzgraf, L.G., Miele-Pajot, N., Papiernik, R., Vaissermann, J.: A novel example of self-assembly in lanthanide chemistry: Synthesis and molecular structure of [Na(EtOH)6][Y9(μ4-O)2(μ3-OH)8{μ-η2-MeC(O)CHC(O)OEt}8{η2-MeC(O)CHC(O)OEt}8]. J. Chem. Soc., Dalton Trans. 23, 4127–4130 (1999)
Souza, A.P., Alves Jr, S., Malta, O.L.: New complexes of europium and gadolinium with 2,4,6-trichlorophenyl acetoacetate as ligand. Opt. Mater. 33, 402–407 (2011)
Cauro-Gamet, L.C., Hubert-Pfalzgraf, L.G., Lecocq, S.: Syntheses and molecular structures of titanium derivatives with polymerizable ligands. Toward extended arrays. Z. Anorg. Allg. Chem. 630, 2071–2077 (2004)
Godlewska-Żylkiewicz, B., Zambrzycka, E., Leśniewska, B., Wilczewska, A.Z.: Separation of ruthenium from environmental samples on polymeric sorbent based on imprinted Ru(III)–allyl acetoacetate complex. Talanta 89, 352–359 (2012)
Mishchenko, A.M., Trunova, E.K., Berezhnytskaya, A.S., Rogovtsov, A.A.: Tendency of the nephelauxetic effect to vary in a series of lanthanide complexes with allyl acetoacetate. J. Appl. Spectrosc. 81, 905–911 (2015)
Martynenko, L.I.: Features of the complexation of trivalent rare earths. Russ. Chem. Rev. 60, 1008–1022 (1991)
Tsuchiya, T., Taketsugu, T., Nakano, H., Hirao, K.: Theoretical study of electronic and geometric structures of a series of lanthanide trihalides LnX\(_{\text{3 }}\) (Ln = La–Lu; X = Cl, F). J. Mol. Struct. (Theochem) 461–462, 203–222 (1999)
Choppin, G.R.: Covalency in f-element bonds. J. Alloys Compd. 344, 55–59 (2002)
Tanner, P.A., Yeung, Y.Y.: Nephelauxetic effects in the electronic spectra of Pr3+. J. Phys. Chem. A 117, 10726–10735 (2013)
Tsaryuk, V., Zolin, V., Legendziewicz, J.: The structure of ligands and effects of the europium luminescence excitation. J. Lumin. 102–103, 744–750 (2003)
Dutt, N.K., Nag, K., Seshadri, T.: Chemistry of lanthanons—XX. Complexes of the rare earths with 3-mercapto-1-phenylbut-2-en-1-one. J. Inorg. Nucl. Chem. 31, 1435–1438 (1969)
Pashchevskaya, N.V., Bolotin, S.N., Sokolov, M.E., Sklyar, A.A., Panyushkin, V.T.: Potentiometric study of reactions of rare-earth elements with 3-allylpentanedione in a water–dioxane medium. Russ. J. Gen. Chem. 76, 1011–1014 (2006)
Davidenko, N.K., Zholdakov, A.A.: Stability of the benzoyl acetonate complexes of the rare earth elements in water–methanol solution. Z. Neorg. Khimii 12, 1195–1198 (1967)
Mumper, R.J., Jay, M.: Formation and stability of lanthanide complexes and their encapsulation into polymeric microspheres. J. Phys. Chem. 96, 8626–8636 (1992)
Hartley, F., Burgess, C., Alcock, R.: Solution Equilibria. Ellis Horwood, Chichester (1980)
Irving, H., Rossotti, H.: The calculation of formation curves of metal complexes from pH titration curves in mixed solvents. J. Chem. Soc. 2904–2910 (1954)
Bayes, G.S., Raut, S.S., Patil, V.R., Lokhande, R.S.: Formation of diazepam–lanthanides(III) complexes in the 50–50 volume % ethanol–water solvent system and study of the effect of temperature on the complex formation constants. J. Solution Chem. 41, 241–248 (2012)
HyperChem version 8.0.8. Hypercube, Inc. (2009)
Sastri, V.S., Bünzli, J.-C.G., Ramachandra Rao, V., Rayudu, G.V.S., Perumareddi, J.R.: Modern Aspects of Rare Earths and Their Complexes. Elsevier, Amsterdam (2003)
Liu, G.: Electronic energy level structure. In: Liu, G., Jacquier, B. (eds.) Spectroscopic Properties of Rare Earths in Optical Materials, pp. 1–94. Tsinghua University Press and Springer, Beijing and Heidelberg (2005)
Elliott, J.P., Judd, B.R., Runciman, W.A.: Energy levels in rare-earth ions. Proc. R. Soc. (Lond.) 240, 509–523 (1957)
Wong, E.Y.: Taylor series expansion of the intermediate coupling energy levels of Nd3+ and Er3+. J. Chem. Phys. 35, 544–546 (1961)
Lakshman, S.V.J., Jayasankar, C.K.: Optical absorption spectrum of thulium acetate in solution. Proc. Indian Natn. Sci. Acad. 48 A, 642–653 (1982)
Davidenko, N.K., Yatsimirskii, K.B.: Regularities of band shifts in spectra of lanthanide ions upon complex formation in solutions. Theor. Exp. Chem. 6, 505–512 (1970)
Yatsimirskii, K.B., Davidenko, N.K.: Absorption spectra and structure of lanthanide coordination compounds in solution. Coord. Chem. Rev. 27, 223–273 (1979)
Petrov, D., Angelov, B.: Radial integrals 〈r k〉4f and nephelauxetic effect of Nd3+ in crystals. Spectrochim. Acta Part A 118, 199–203 (2014)
Cotton, S.A.: Establishing coordination numbers for the lanthanides in simple complexes. C. R. Chimie 8, 129–145 (2005)
Comba, P., Gloe, K., Inoue, K., Krulger, T., Stephan, H., Yoshizuka, K.: Molecular mechanics calculations and the metal ion selective extraction of lanthanoids. Inorg. Chem. 37, 3310–3315 (1998)
Waber, J.T., Cromer, D.T.: Orbital radii of atoms and ions. J. Chem. Phys. 42, 4116–4123 (1965)
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Mishchenko, A.M., Trunova, E.K. & Berezhnytska, A.S. Lanthanide Complexes with Allyl Acetoacetate in Mixed Water–Organic Media: Formation, Stability and Bonding. J Solution Chem 44, 2117–2128 (2015). https://doi.org/10.1007/s10953-015-0396-z
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DOI: https://doi.org/10.1007/s10953-015-0396-z