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KCu(SeO4)Cl(H2O)2, a first copper chloride selenate

  • Oleg I. Siidra EMAIL logo and Mishel R. Markovski
Published/Copyright: June 24, 2021
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Zeitschrift für Kristallographie - Crystalline Materials
From the journal Zeitschrift für Kristallographie - Crystalline Materials Volume 236 Issue 5-7

Abstract

A first copper chloride selenate was obtained upon attempted preparation of a selenate analog of chlorothionite. The new compound is monoclinic, P21/c, a = 7.1833(5) Å, b = 11.7784(8) Å, c = 8.2419(6) Å, β = 91.083(2)°, V = 697.20(8) Å3, R1 = 0.033. KCu(SeO4)Cl(H2O)2 has no structural analogs and adds to the small family of transition metal selenate halides. The CuO3(H2O)2Cl strongly distorted octahedra share common O–O edges thus forming dimeric units with a Cu–Cu distance of 3.49 Å. Dimeric units and SeO4 tetrahedra in KCu(SeO4)Cl(H2O)2 share common O atoms to produce unique [Cu(SeO4)Cl(H2O)2]− chains. We discuss further perspectives of the selenate halide family and expected differences in crystal chemistry of sulfate and selenate halides.

Keywords: chlorides; chlorothionite; copper; crystal structure; selenates
Corresponding author: Oleg I. Siidra, Department of Crystallography, St. Petersburg State University, University Emb. 7/9, 199034, St. Petersburg, Russia; and Kola Science Center, Russian Academy of Sciences, Apatity, 184200, Murmansk Region, Russia, E-mail:

Funding source: Russian Foundation for Basic Research

Award Identifier / Grant number: 19-05-00413

Acknowledgment

We are grateful to two anonymous reviewers for valuable comments. Technical support by the SPbSU Resource Centers is gratefully acknowledged.

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

  2. Research funding: This work was financially supported by the Russian Foundation for Basic Research, Grant No. 19-05-00413.

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

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Supplementary Material

The online version of this article offers supplementary material (https://doi.org/10.1515/zkri-2021-2020).

Received: 2021-03-30
Accepted: 2021-06-14
Published Online: 2021-06-24
Published in Print: 2021-06-25

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/zkri-2021-2020
Keywords for this article
chlorides; chlorothionite; copper; crystal structure; selenates

Articles in the same Issue

  1. Frontmatter
  2. In this issue
  3. Inorganic Crystal Structures (Original Papers)
  4. ErNi2.23Al2.77 and YbNi2.31Al2.69 – i3 superstructures of the CaCu5 type
  5. New compound Sm2Ru3Sn5 with a structure derived from Ru3Sn7
  6. Site preference and atomic ordering in the ternary Rh5Ga2As: first-principles calculations
  7. SmPt2In2 – a new ternary indide with a Pt–In polyanionic framework
  8. The order/disorder phase transition of hypophosphorous acid H3PO2
  9. KCu(SeO4)Cl(H2O)2, a first copper chloride selenate
  10. The germanides APtGe2 (A = Ca, Sr, Eu)
  11. Organic and Metalorganic Crystal Structures (Original Paper)
  12. Crystal structure analysis and supramolecular association in ethyl N-[amino(iminio)methyl]carbamate dichloride hemi-hydrate
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