Abstract
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.
Publisher
V.I. Vernadsky Institute of General and Inorganic Chemistry
Reference31 articles.
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献