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Zeitschrift für Naturforschung B

A Journal of Chemical Sciences

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Volume 66, Issue 2

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Crystal Chemistry of Uranyl Halides Containing Mixed (UO2)(XmOn)5 Bipyramids (X = Cl, Br): Synthesis and Crystal Structure of Cs2(UO2)(NO3)Cl3

Evgeny V. Nazarchuk
  • Department of Crystallography, Faculty of Geology, Saint-Petersburg State University, University Emb. 7/9, St. Petersburg, 199034, Russia
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/ Oleg I. Siidra
  • Corresponding author
  • Department of Crystallography, Faculty of Geology, Saint-Petersburg State University, University Emb. 7/9, St. Petersburg, 199034, Russia
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/ Sergey V. Krivovichev
  • Department of Crystallography, Faculty of Geology, Saint-Petersburg State University, University Emb. 7/9, St. Petersburg, 199034, Russia
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  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znb-2011-0206

Single crystals of Cs2(UO2)(NO3)Cl3 were prepared by a hydrothermal method at 205 °C. The crystal structure has been solved by Direct Methods: monoclinic, P21/n, a = 10.3748(13), b = 9.4683(13), c = 12.5535(16) Å, β = 110.280(2)◦, V = 1156.7(3) Å3, R1 = 0.029. In the structure, strongly bonded linear uranyl cations UO22+ are equatorially coordinated by two O and three Cl atoms to form (UO2)Cl3O2 pentagonal bipyramids. Each bipyramid shares its O-O edge with an adjacent (NO3) anion to form finite clusters with the chemical composition [(UO2)(NO3)Cl3]2−. The Cs+ cations provide three-dimensional connectivity of the structure by forming Cs-O and Cs-Cl contacts to the uranyl nitrate chloride complexes. Related structures of mixed-ligand uranyl halides are compared.

Graphical Abstract

Crystal Chemistry of Uranyl Halides Containing Mixed (UO2)(XmOn)5 Bipyramids (X = Cl, Br): Synthesis and Crystal Structure of Cs2(UO2)(NO3)Cl3

Crystal Chemistry of Uranyl Halides Containing Mixed (UO2)(XmOn)5 Bipyramids (X = Cl, Br): Synthesis and Crystal Structure of Cs2(UO2)(NO3)Cl3

Keywords: Uranyl; Chloride; Crystal Structure; Crystal Chemistry; Nitrate

About the article

Received: 2010-11-22

Published Online: 2014-06-02

Published in Print: 2011-02-01


Citation Information: Zeitschrift für Naturforschung B, Volume 66, Issue 2, Pages 142–s147, ISSN (Online) 1865-7117, ISSN (Print) 0932-0776, DOI: https://doi.org/10.1515/znb-2011-0206.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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