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New crystal forms of tris(2-aminoethanolato-O,N)cobalt(III): Structures and properties

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An Erratum to this article was published on 01 October 2007

Abstract

Crystal forms of cobalt(III) tris(2-aminoethanolate) hydrates, i.e., red cubic crystals of the composition fac-[Co(NH2CH2CH2O)3] · 5.44H2O (fac-I · 5.44H2O) and blue prismatic crystals of the composition mer-[Co(NH2CH2CH2O)3] · 3H2O (mer-I · 3H2O) were studied by the 59Co, 13C NMR and X-ray diffraction methods. It was found that mer-[Co(NH2CH2CH2O)3] · 3H2O (mer-I · 3H2O) is a new pseudopolymorphic modification of fac-[Co(NH2CH2CH2O)3] · 3H2O (fac-I · 3H2O), while fac-I · 3H2O represents a new polymorphic modification of the complex mer-[Co(NH2CH2CH2O)3] · 3H2O (mer-I · 3H2O) described previously. The comparative analysis of the spectra revealed dynamic equilibrium between these geometric isomers; the fac-isomer is stable in aqueous solutions.

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Authors and Affiliations

  1. Moldova State University, ul. Matteevicha 60, Chisinau, 27709, Moldova

    A. S. Kotovaya, S. G. Shova & A. P. Gulya

  2. Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Moldova

    Yu. A. Simonov

  3. Bucharest University, Romania

    T. Roshu & I. Sandu

Authors
  1. A. S. Kotovaya
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  2. S. G. Shova
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  3. Yu. A. Simonov
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  4. T. Roshu
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  5. I. Sandu
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  6. A. P. Gulya
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Additional information

Original Russian Text © A.S. Kotovaya, S.G. Shova, Yu.A. Simonov, T. Roshu, I. Sandu, A.P. Gulya, 2006, published in Koordinatsionnaya Khimia, 2006, Vol. 32, No. 11, pp. 874–880.

An erratum to this article is available at http://dx.doi.org/10.1134/S1070328407100132.

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Kotovaya, A.S., Shova, S.G., Simonov, Y.A. et al. New crystal forms of tris(2-aminoethanolato-O,N)cobalt(III): Structures and properties. Russ J Coord Chem 32, 841–847 (2006). https://doi.org/10.1134/S1070328406110121

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  • DOI: https://doi.org/10.1134/S1070328406110121

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