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Crystal Structure of Tetra- and Pentasodium Salts of Nitrilotris(methylenephosphonic Acid)

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Abstract

Tetra- and pentasodium salts of nitrilotris(methylenephosphonic acid) N(CH2PO3)3H6 (NTP) have been studied by single-crystal X-ray diffraction and spectroscopy. [Na8(H2O)12{NH(CH2PO3)3H}2] · H2O crystallizes in triclinic system, space group P1̅, Z = 1, a = 7.1515(2) Å, b = 11.1590(3) Å, c = 12.0583(3) Å; α = 92.077(2)°, β = 106.145(2)°, γ = 5.628(2)°, CCDC No. 1432091. The crystal structure comprises two-dimensional layers lying along planes (011̅), where dimeric molecules are linked by bridges each comprising four Na hydration octahedra. The [Na5(H2O)11{NH(CH2PO3)3}] · 2H2O crystals are monoclinic, space group P21/n, Z = 4, a = 6.3024(2) Å, b = 21.5639(7) Å, c = 18.1608(6) Å; β = 91.261(3)°, CCDC No. 1497161. The crystal packing comprises alternating layers in planes [020] made of two-dimensional nets of Na hydration polyhedra, and columns of Na hydration octahedra lying in planes [040], with acid moieties in between.

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Authors and Affiliations

  1. Lobachevsky National Research University, Nizhny Novgorod, 603950, Russia

    N. V. Somov

  2. Udmurt State University, Izhevsk, 426034, Russia

    F. F. Chausov & R. M. Zakirova

  3. Physicotechnical Institute, Ural Branch of Russian Academy of Sciences, Izhevsk, 426000, Russia

    F. F. Chausov

  4. Institute of Mechanics, Ural Branch of Russian Academy of Sciences, Izhevsk, 426067, Russia

    F. F. Chausov, V. G. Petrov & M. A. Shumilova

Authors
  1. N. V. Somov
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  2. F. F. Chausov
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  3. R. M. Zakirova
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  4. V. G. Petrov
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  5. M. A. Shumilova
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Correspondence to N. V. Somov.

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Original Russian Text © N.V. Somov, F.F. Chausov, R.M. Zakirova, V.G. Petrov, M.A. Shumilova, 2018, published in Zhurnal Neorganicheskoi Khimii, 2018, Vol. 63, No. 1, pp. 46–53.

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Somov, N.V., Chausov, F.F., Zakirova, R.M. et al. Crystal Structure of Tetra- and Pentasodium Salts of Nitrilotris(methylenephosphonic Acid). Russ. J. Inorg. Chem. 63, 40–47 (2018). https://doi.org/10.1134/S0036023618010199

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  • DOI: https://doi.org/10.1134/S0036023618010199

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