heterometallic complexes, cobalt, neodymium, aminopolycarboxylic acids, spectral properties.

How to Cite



New heterometallic complexes of Nd(III) and Co(II) based on ethylenediaminetetraacetic and ethylenediaminedisuccinic acids have been synthesized. The complexes studied by electron absorption spectroscopy, IR-spectroscopy, and thermogravimetric analysis. The influence of a number of factors on the properties and structure of heteronuclear complexes is discussed. The spectral characteristics of homonuclear and heteronuclear complexes are compared. A theoretical analysis of the geometry of Co(II) and Nd(III) complexes with ethylenediaminesuccinic acid was carried out by the semi-empirical PM7 method. It has been shown that the f-d-complexes are of the folded type, in which the ligand-complexone realizes the maximum denticity to Nd(III), and the Co(II) coordination sphere is formed by bridging edta/edds carboxyl groups and intrasphere water molecules. The Co(II) coordination polyhedron corresponds to a distorted octahedron, and the Nd(III) coordination polyhedron corresponds to a one-capped square antiprism (C4v) with the coordination number Nd(III)=8. During study fixed that heterometallic complexes have the same structure in solutions and in the solid state.


Zhong G. Q., Shen J., Jiang Q. Y., Jia Y. Q.,.Chen M. J, Zhang Z. P..Synthesis, characterization and thermal decomposition of Sb III-M-Sb III type trinuclear complexes of ethylene-diamine-N,N,N′,N′-tetraacetate (M: Co(II), La(III), Nd(III), Dy(III)). Journal of Aermal Analysis and Calorimetry. 2008. 92 (2): 607.

Shen J., Jiang Q.-Y, Zhong G.-Q., Jia Y.-QYu., K.-B. Synthesis, crystal structure and thermal decomposition of a novel 3D heterome-tallic Sb(III)-Pr(III) complex [Sb2-μ4- (EDTA) 2Pr(H2O)5]NO3•4H2O. Acta Chimica Sinica. 2007. 65(16): 1588.

Stavila V., Davidovich R. L., Gu-leaA.,WhitmireK. H. Bismuth(III) complexes with animopolycarboxylate and polyamino-polycarboxylate ligands: chemistry and structure. Coordination Chemistry Reviews. 2006. 250 (21-22): 2782.

Liu T., Yang R.-G., Zhong, G.-Q. Synthesis, Structural Characterization, and Antibacterial Activity of Novel Erbium(III) Complex Containing Antimony. Bioinorganic Chemistry and Applications. 2018.1: 1.

Zasurskaya L.A., Rybakov V.B., Poznyak A L., Polynova T.N. Crystal structures of calcium, strontium, and barium aqua (ethylene-diaminetetraacetato (3-)) cobaltate (II) tetrahy-drates, M'[CoHEdta (H2O)]2• 4H2O (M'= Ca2+, Sr2+, Ba2+). Russian Journal of Coordination Chemistry. 2000. 26(7):492.

Polyakova I.N., Sergienko B.C., Poznyak A.L., Stopolyanskaya L.V. Crystal structure of magnesium salt of copper(I) ethylene-diaminetetraacetate MgCu(Edta) hexahydrate. Russian Journal. Inorgan. chemistry. 1999. 44. (9): 1454.

Stavila V., Gulea Au., Popa N., Shova S., Merbach A., Simonov Yu., Lipkowski J. A novel 3D Nd(III)–Bi(III) coordination polymer generated from EDTA ligand. Inorg. Chem. Commun. 2004. 7: 634.

Drobotenko V.V., Balabanov S.S., Storozheva T.I. Obtaining homo- and heterometallic binuclear complexes as precursors for the creation of oxide materials. Bulletin of the Nizhny Novgorod University. NI Lobachevsky. 2007. (6): 72.

Smola S.S., Vitulskaya V.K., Rusakova N.V., KorovinYu.V. Heteronuclear aminopol-carboxylates oslanthanades (III) and bismuth (III).Visn. Odes. Nac. Univ., Him. 2009. 14 (3): 11.

Seifullina I.I., KorovinYu.V. Spectroscopic properties of heteronuclear Ln (III) -Ge (IV) complexes with ethylenediamine-N, N, N ’, N’-tetraacetic and diethylenetriamine-N, N, N’, N ’, N’ ’- pentaacetic acids. Ukrain. Chem. J. 2009. 75, (4): 75.

Gao S., BaiOu, Ma B.-Q., Yi T., Yan Ch.-H., Xu G.-X. A novel two-dimensional 4f- 3d coordination polymer Ce2Co3 (ED-TA)3(H2O)11•12H2O. J. Chemical Crystallography. 2000. 30 (3): 163.

Poray-Kosits M.A., Polynova T.N. Stereochemistry of complexes based on ethylen-ediamine-tetraacetic acid and its diamine analogues. J. Coord. Chem. 1984. 10 (6): 725.

Trunova O.K., Rusakova N.V., Shovkova G.V, HaidaiYa. M., Korovin O.Yu., Malinka O.V. Synthesis and study of Nd(III) and Zn(II) heterometallic complexes with ethylenediami-nedisuccinate acid. Ukrain. Chem. J. 2014. 80 (3): 3.

Trunova O.K., Mishchenko A.M., Makotryk T.O. Synthesis and spectral characteris-tics of heterometallic complexes of Pr(III) with Zn(II), Co(II) based on ethylenediaminetetraacetic and ethylenediaminediartaric acids. Ukrainian Chemistry Journal. 2021. 87 (3):3.

Trunova O.K., Mazurenko E.A., Rogovtsov A.A., Makotryk T.A. Technological basis forthe synthesis of biologically active complexone based on succinic acid. Voprosy Khimiii Khimicheskoi Tekhnologii. 2001. (4): 28.

Vicentini G., Zinner L.B., Felicissimo A.M.P., Zinner K. J. Inorg. Nucl. Chem. 1979. 41 (11): 1611

Mishchenko A. M., Trunova E. K.,. Berezhnytskaya A. S, Rogovtsov A. A. Tendency of the nepheloxetic effect to vary in a series of lanthanide complexes with allyl acetoacetate. J. Applied Spectroscopy. 2015. 81 (6): 905.

Görller-Walrand C., Binnemans K. Spectral intensities of f-f transitions. In Handbook on the Physics and Chemistry or Rare Earth, 25; Gschneidner, K.A., Jr.; Eyring, L., Eds.; Elsevier Science B.V.: Amsterdam. 1998. 25: 101.

Cotton S. Lanthanide and actinide chemistry. (Chichester: John Wiley & Sons Ltd, 2006).

Wang J., Hu P., Liu B. Investigation on coordination number and geometrical conformation of rare earth complexes with catenulate aminopolycarboxylic acid ligands. J. Coord. Chem. 2010. 63(13): 2193.

Sinha S.P. Spectroscopic investigation of some neodymium complexes. Spectrochim. Acta. 1966. 22: 57.

Yatsimirskii K.B., Davidenko N.K. Absorption spectra and structure of lanthanide coordinateon compounds in solution. Coord. Chem. Rev. 1979. 27 (3): 223.

KholinYu.V. Quantitative physicochemical analysis of complexation in solutions and on the surface of chemically modified silicas: meaningful models, mathematical methods and their applications. (Kharkiv: Folio, 2000). [in Russian].

Kornev, V. I., Alabdulla, G. F., Kropa-cheva, T. N., &Batueva, E. V. (2017). Forma-tion of heteropolynuclear cobalt (II) and nickel (II) complexonates with EDTA and 2-aminopropanoic acid. Russian Journal of Inor-ganic Chemistry. 62(5): 659.

Trunova O.K. Biologically active com-plexes of ethylenediaminedisuccinic acid with 3-d metals. (Synthesis, structure, proper-ties).Doctoral (Chem.) Thesis (Kyiv, 2012)[in Ukrainian].

Shkol'nikova, L. M., Porai-Koshits, M. A.. Structure of the uncharged, anionic, and cationic forms of aminoalkylcarboxylic and aminoalkylphosphonic complexones. Russian Chemical Reviews. 1990. 59 (7): 643

Zhong G.-Q., Shen J., Jiang Q.-Y., Yu K.-B. Synthesis and structural determination of a novel heterometallic complex [Sb2(edta)2-μ4-Co(H2O)2]•5.15H2O.Chinese Journal of Chemistry. 2011.29.(12): 2650.

Lanigan K.C., Pidsosny K. Reflectance FTIR spectroscopi analysis of metal complexation to EDTA and EDDS. Vibra-tion Spectroscopy . 2007. (45): 2.

Dyatlova, N.M., Temkina, V.Ya., and Popov, K.I., Kompleksony i kompleksonaty metallov (Complexones and Metal Complexonates), Moscow: Khimiya, 1988.

TrunovaE.K., DudkoA.V., OsadshaE.V., ShovkovaA.V., Makotryk T.A. Poly[(bis((R,S)-Ethylenediamin-N,N-disuccinato)-di-cobalte(III)disodium)tetrahydrate]. Acta Crystall. SectionE. 2011. 67 (11): 1547.

TrunovaE.K., MishchenkoA.M., RogovtsovA. A., Makotryk, T. A. Crystalstructure of a novel cobalt (II) complex with ethylenediaminedisuccinic acid. Voprosy khimii i khimicheskoi tekhnologii. 2018. (6): 84.


Download data is not yet available.