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Np(V) dicyanamide complexes with electroneutral N-donor ligands

  • Mikhail S. Grigoriev EMAIL logo , Iraida A. Charushnikova and Alexandr M. Fedoseev
Published/Copyright: October 14, 2022
Radiochimica Acta
From the journal Radiochimica Acta Volume 111 Issue 1

Abstract

Three new complexes of Np(V) dicyanamide with electroneutral N-donor ligands have been synthesized and structurally characterized: two with terpyridine derivatives: [(NpO2)(Cl-Terpy)(DMA)(N(CN)2)]·0.5DMA (1), [(NpO2)(TPTZ)(N(CN)2)(H2O)]·2H2O·CH3OH (2) and a dimeric complex with bipyridine [(NpO2)(Bipy)(N(CN)2)(H2O)]2·2(CH3OH) (3). In compounds 1–3, the coordination polyhedra of Np atoms are pentagonal bipyramids with “yl” oxygen atoms in apical positions. The equatorial plane of the bipyramids is formed by nitrogen atoms of the anions [N(CN)2]− and N-donor electroneutral ligands (Cl-Terpy, TPTZ, Bipy) and the oxygen atom of water molecule (1, 3) or DMA (2). In compounds 1 and 2, the [N(CN)2]− anions manifest themselves as monodentate ligands, and in compound 3 dicyanamide is a bidentate-bridging ligand.

Keywords: actinides; crystal structure; dicyanamides; neptunium
Corresponding author: M. S. Grigoriev, Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31, bldg 4, Leninsky prosp., Moscow 119071, Russia, E-mail:

Funding source: Ministry of Science and Higher Education of the Russian Federation

Acknowledgements

X-ray diffraction experiments were performed at the Centre for Shared Use of Physical Methods of Investigation at the Frumkin Institute of Physical Chemistry and Electrochemistry, RAS.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The study was supported by the Ministry of Science and Higher Education of the Russian Federation (program no. 122011300061-3).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-03-09
Accepted: 2022-09-06
Published Online: 2022-10-14
Published in Print: 2023-01-27

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. Progress in solid state and coordination chemistry of actinides in China
  4. Original Papers
  5. Np(V) dicyanamide complexes with electroneutral N-donor ligands
  6. Comparison of the performance of solvent wash reagents used for the primary cleanup of degraded PUREX solvent
  7. 1-aza-18-crown-6 ether tailored graphene oxide for Cs(I) removal from wastewater
  8. Evaluation of nuclear data analysis techniques for volume fraction prediction in the flow meter
https://doi.org/10.1515/ract-2022-0033
Keywords for this article
actinides; crystal structure; dicyanamides; neptunium

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. Progress in solid state and coordination chemistry of actinides in China
  4. Original Papers
  5. Np(V) dicyanamide complexes with electroneutral N-donor ligands
  6. Comparison of the performance of solvent wash reagents used for the primary cleanup of degraded PUREX solvent
  7. 1-aza-18-crown-6 ether tailored graphene oxide for Cs(I) removal from wastewater
  8. Evaluation of nuclear data analysis techniques for volume fraction prediction in the flow meter
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