Skip to main content
SpringerLink
Log in

Formation of Two Types of Crystals of Protonated Erbium Bis(1-hydroxyethylidene)diphosphonate Tetrahydrate in the Reaction of Erbium Carbonate with (1-Hydroxyethylidene)diphosphonic Acid. Selection of Lamellar Crystals

  • STRUCTURE OF INORGANIC COMPOUNDS
  • Published:
Crystallography Reports Aims and scope Submit manuscript

Abstract

Poorly soluble protonated erbium bis(1-hydroxyethylidene)diphosphonate tetrahydrate (HEr(H2L)2 · 4H2O), formed as a result of the reaction of erbium carbonate (Er2(CO3)3 · 4H2O) with an excess of (1-hydroxyethylidene)diphosphonic acid (СН3(ОН)С[P(O)(OH)2]2, H4L), consists of two types of crystals (needle-like and lamellar ones). This compound slowly dissolves in an aqueous medium when adding the following organic amines: 2-aminoethanol, 2-amino-2-(hydroxymethyl)propane-1,3-diol, and 2,2'-(ethylidenedioxy)bis(ethylamine). The latter are attached to the complex-molecule periphery (i.e., free –Р(О)ОН groups) to form fragments of amine salt (–Р(О)О–+NH3–CH2–). The first coordination sphere of the complex does not change; therefore, the energies of the f–f transitions of the Er3+ cation in the electronic absorption spectra remain invariable after the attachment of various amines, which act as solubility promoters. The interaction of suspension of protonated erbium bis(1-hydroxyethylidene)diphosphonate tetrahydrate with equimolar amounts of amines leads to selective dissolution of fine-grained needles and makes it possible to select the fraction of lamellar crystals in the pure form.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.

Similar content being viewed by others

REFERENCES

  1. V. P. Khramov and A. A. Kol’tsov, Zh. Neorg. Khim. 18, 2947 (1973).

    Google Scholar 

  2. E. G. Afonin and N. I. Pechurova, Zh. Neorg. Khim. 32, 1021 (1987).

    Google Scholar 

  3. V. V. Semenov, N. V. Zolotareva, and B. I. Petrov, Patent RF No. 2015110362/04 (016255).

  4. V. V. Semenov, N. V. Zolotareva, B. I. Petrov, et al., Rus. J. Gen. Chem. 85, 1116 (2015). doi 10. 1134/S1070363215050199

  5. N. S. Poluektov, L. N. Kononenko, N. P. Efryushina, and S. V. Bel’tyukova, Spectrophotometric and Luminescence Methods for Determination of Lanthanides (Naukova Dumka, Kiev, 1989) [in Russian].

    Google Scholar 

Download references

ACKNOWLEDGMENTS

This study was performed using equipment of the Center for Shared Use of  the Scientific Educational Center “Physics of Solid State Nanostructures” of the Lobachevsky State University of Nizhny Novgorod and of the Analytical Center of the Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences.

Funding

This study was performed within a State contract (Subject no. 45.8 “Chemistry of Functional Materials”, registration no. 0094-2016-0012) and supported by the Russian Academy of Sciences (program no. 35 of the Presidium of the Russian Academy of Sciences “Scientific Fundamentals for the Formation of New Functional Materials”).

Author information

Authors and Affiliations

  1. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 603950, Nizhny Novgorod, Russia

    V. V. Semenov, N. V. Zolotareva, O. V. Novikova & B. I. Petrov

  2. Lobachevsky State University of Nizhny Novgorod, 603950, Nizhny Novgorod, Russia

    E. N. Razov

  3. Institute for Mechanical Engineering Problems, Russian Academy of Sciences, 603024, Nizhny Novgorod, Russia

    E. N. Razov

Authors
  1. V. V. Semenov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. V. Zolotareva
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. O. V. Novikova
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. B. I. Petrov
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. E. N. Razov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. V. Semenov.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Semenov, V.V., Zolotareva, N.V., Novikova, O.V. et al. Formation of Two Types of Crystals of Protonated Erbium Bis(1-hydroxyethylidene)diphosphonate Tetrahydrate in the Reaction of Erbium Carbonate with (1-Hydroxyethylidene)diphosphonic Acid. Selection of Lamellar Crystals. Crystallogr. Rep. 65, 228–232 (2020). https://doi.org/10.1134/S1063774520020200

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063774520020200

Search

Navigation