Abstract
Binuclear complexes of Sm(III), Eu(III), Gd(III), Tb(III), and Dy(III) nitrates with 4,4,10,10-tetramethyl-1,3,7,9-tetraazospiro[5.5]undecane-2,8-dione (C11H20N4O2, SC)—[Sm(NO3)3(SC)(H2O)]2(I), [Eu(NO3)3(SC)(H2O)]2 (II), [Gd(NO3)2(SC)(H2O)3)]2(NO3)2 (III), [Tb(NO3)3(SC)(H2O)]2 (IV), [Dy(NO3)3(SC)(H2O)]2 (V), are synthesized, and their X-ray diffraction analyses are carried out. The crystals of complexes I–V are monoclinic: space group P21/n for III and P21/c for I, II, IV, and V. In centrosymmetric coordination complexes II, III, IV, and V, the Ln atoms are coordinated by two O(1) and O(2) atoms of two molecules of the SC ligands bound by a symmetry procedure (1 − x, −y, 1 − z), three bidentate nitrate anions, and a water molecule. The coordination numbers of the metal atoms are equal to 9, and the coordination polyhedra are considerably distorted three-capped trigonal prisms, whose bases include the O(1), O(2), O(12) and O(3), O(7), O(9) atoms. The dihedral angle between the bases of the prism is 18°, and that between the mean planes of the side faces is 55°–71° for I, 17° and 55°–71° for II, 16° and 55°–70° for IV, and 16° and 55°–70° for V. The Sm...Sm distance in complex I is 9.44 Å, Eu...Eu in II is 9.42 Å, Tb...Tb in IV is 9.36Å, and Dy...Dy in V is 9.36Å. The gadolinium atom in complex III is coordinated by two oxygen atoms of two ligand molecules bound by a symmetry procedure (−x, −y + 1, −z + 1), two bidentate nitrate anions, and three water molecules. One of the nitro groups in compound III is localized in the external coordination sphere of the metal. The coordination number of gadolinium is 9, and the coordination polyhedron is a significantly distorted three-capped trigonal prism, whose base includes the O(1), O(2), O(7) and O(4), O(5), O(9) atoms. The dihedral angle between the bases of the prism is 22.8°, and that between the mean planes of the side faces is 53°–72°. The Gd...Gd distance in complex III is 9.17 Å.
Similar content being viewed by others
References
Mahbub, A., Fazal, H., and Khalid, L., Indian J. Exp. Biol., 1992, vol. 30, p. 1181.
Starikovich, L.S., Dudok, E.P., Sibirnaya, N.A., et al., Medichna Khimiya, 2009, vol. 11, vol. 1, p. 57.
Starikovich, L.S., Starikovich, M.A., Rechitskii, A.N., et al., Studiabiologica, 2009, vol. 3, no. 2, p. 93.
Musatov A.G., Semyashkina A.A., and Dashevskii, R.F., Khranenie i pererabotka zerna, 2007, no. 7, p. 38.
Gurevich, A.S., Titov, V.A., Babaeva, E.V., et al., Introduktsiya, akklimatizatsiya i kul’tivatsiya rastenii: Sb. nauch. tr., Kaliningrad: Kaliningr. univ., 1998, p. 30.
Kozichar, M.V., Cand. Sci. (Agric) Dissertation, Kherson, 1998.
Netreba, E.E., Fedorenko, A.M., and Pavlov, A.A., Nauch. Visnik Uzhgorod. Un-tu, Ser. Khim., 2011, no. 1(25), p. 107
Sheldrick, G.M., Acta Crystallogr., Sect. A: Found. Crystallogr., 2008, vol. 64, p. 112.
Grigor’ev, A.I., Vvedenie v kolebatel’nuyu spektroskopiyu neorganicheskikh soedinenii (Introduction to Vibrational Spectroscopy of Inorganic Compounds), Moscow: MGU, 1977.
Kharitonov, Yu.Ya., Analiticheskaya khimiya (analitika). Kn. 1 (Analytical Chemistry (Analytics). Book 1), Moscow: Vyssh. shkola, 2003.
Nakamoto, K., Infrared Spectra and Raman Spectra of Inorganic and Coordination Compounds, New York: Wiley, 1986.
Zefirov, Yu.V. and Zorkii, P.M., Usp. Khim., 1989, vol. 58, no. 5, p. 713.
Netreba, E.E., Visnik Kharkiv. Nats. Un-tu, 2012, no. 10(26), p. 320.
Netreba, E.E., Nauch. Visnik Uzhgorod. Un-tu, Ser. Khim., 2012, no. 2(28), p. 40
Bandurkin, G.A., Dzhurinskii, B.F., and Tananaev, I.V., Osobennosti kristallokhimii soedinenii redkozemel’nykh elementov (Characteristic Features of the Crystal Chemistry of Lanthanide Compounds), Moscow: Nauka, 1984.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.E. Netreba, 2013, published in Koordinatsionnaya Khimiya, 2013, Vol. 39, No. 10, pp. 613–627.
Rights and permissions
About this article
Cite this article
Netreba, E.E. Synthesis and molecular and crystal structures of binuclear complexes of Sm(III), Eu(III), Gd(III), Tb(III), and Dy(III) nitrates with 4,4,10,10-tetramethyl-1,3,7,9-tetraazospiro[5.5]undecane-2,8-dione. Russ J Coord Chem 39, 723–737 (2013). https://doi.org/10.1134/S1070328413100047
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1070328413100047