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Crystal structures of acid ethylenediaminetetraacetates [Cd(H2 Edta)(H2O)] · 2H2O and [Mn(H2O)4][Mn(HEdta)(H2O)]2 · 4H2O

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Abstract

The crystal structures of [Cd(H2 Edta)(H2O)] · 2H2O (I) and [Mn(H2O)4][Mn(HEdta)(H2O)]2 · 4H2O (II) are studied by X-ray diffraction [R 1 = 0.0209 (0.0272), wR 2 = 0.0571 (0.0730) for 2551 (4025) reflections with I > 2σ(I) in I (II), respectively]. Structure I contains mononuclear [Cd(H2 Edta)(H2O)] complexes with the C 2 symmetry, and structure II contains centrosymmetric trinuclear [Mn(H2O)4][Mn(HEdta)(H2O)]2 complexes. In I and II, the protonated ligands are hexadentate (2N + 4O), and the water molecule increases the coordination number of the metal atom to seven. The acid protons participate in short intermolecular hydrogen bonds, which are symmetric in II and asymmetric in I.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117907, Russia

    I. N. Polyakova & V. S. Sergienko

  2. Institute of Molecular and Atomic Physics, Belarussian Academy of Sciences, pr. F. Skoriny 70, Minsk, 220072, Belarus

    A. L. Poznyak & L. V. Stopolyanskaya

Authors
  1. I. N. Polyakova
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  2. A. L. Poznyak
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  3. V. S. Sergienko
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  4. L. V. Stopolyanskaya
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Translated from Kristallografiya, Vol. 46, No. 1, 2001, pp. 47–52.

Original Russian Text Copyright © 2001 by Polyakova, Poznyak, Sergienko, Stopolyanskaya.

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Polyakova, I.N., Poznyak, A.L., Sergienko, V.S. et al. Crystal structures of acid ethylenediaminetetraacetates [Cd(H2 Edta)(H2O)] · 2H2O and [Mn(H2O)4][Mn(HEdta)(H2O)]2 · 4H2O. Crystallogr. Rep. 46, 40–45 (2001). https://doi.org/10.1134/1.1343124

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  • DOI: https://doi.org/10.1134/1.1343124

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