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Zeitschrift für Kristallographie - Crystalline Materials

Editor-in-Chief: Pöttgen, Rainer

Ed. by Antipov, Evgeny / Bismayer, Ulrich / Boldyreva, Elena V. / Friese, Karen / Huppertz, Hubert / Tiekink, E. R. T.

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Volume 227, Issue 8

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Mixed-ligand coordination of the (UO2)2+ cation and apophyllite topology of uranyl chlorochromate layer in the structure of ((CH3)2CHNH3)[(UO2)(CrO4)Cl(H2O)]

Oleg I. Siidra / Evgeny V. Nazarchuk
  • St. Petersburg State University, Department of Crystallography, St. Petersburg, Russische Föderation
  • Other articles by this author:
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/ Sergey V. Krivovichev
  • St. Petersburg State University, Department of Crystallography, St. Petersburg, Russische Föderation
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2012-07-16 | DOI: https://doi.org/10.1524/zkri.2012.1471

Abstract

Addition of the Cl-0 anions to the synthesis mixture stabilizes specific structures of uranyl complexes which results in new compounds with the unprecedented structural topologies. ((CH3)2CHNH3)[(UO2)(CrO4) · Cl(H2O)] is a new member of the small family of compounds based upon the Ur(XmOn)5 (X = Cl, Br, I) bipyramids. The structure is based upon uranyl chloride chromate layers that alternate with the layers of protonated amine molecules. The layers contain UrClO4 pentagonal bipyramids that share three of its equatorial corners with CrO4 tetrahedra. Topological analysis shows that the [(UO2)(CrO4)Cl(H2O)]-0 layer belongs to the same topology of interpolyhedral linkage as in α-UO2MoO4(H2O)2. This type of topology (linkage of 4-membered rings creating 8-membered rings) is known in silicate crystal chemistry as the topology of the [Si4O10] layers in the minerals of the apophyllite group. Their linkage via various intermediate units results in a large family of open-framework and pillared silicates.

This article offers supplementary material which is provided at the end of the article.

Keywords: Uranyl chromates; Mixed ligand coordination; Structural topology; Oxohalides; Crystal structures

About the article

* Correspondence address: St. Petersburg State University, Department of Crystallography, University Emb. 7/9, 199034 St. Petersburg, Russische Föderation,


Published Online: 2012-07-16

Published in Print: 2012-08-01


Citation Information: Zeitschrift für Kristallographie - Crystalline Materials, Volume 227, Issue 8, Pages 530–534, ISSN (Print) 2194-4946, DOI: https://doi.org/10.1524/zkri.2012.1471.

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[1]
Oleg I. Siidra, Evgeny V. Nazarchuk, Anna N. Suknotova, Roman A. Kayukov, and Sergey V. Krivovichev
Inorganic Chemistry, 2013, Volume 52, Number 8, Page 4729
[2]
Oleg I. Siidra, Evgeny V. Nazarchuk, Roman A. Kayukov, Rimma S. Bubnova, and Sergey V. Krivovichev
Zeitschrift für anorganische und allgemeine Chemie, 2013, Volume 639, Number 12-13, Page 2302
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Oleg I. Siidra, Evgeny V. Nazarchuk, Elena V. Sysoeva, Roman A. Kayukov, and Wulf Depmeier
European Journal of Inorganic Chemistry, 2014, Volume 2014, Number 32, Page 5495
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Oleg I. Siidra, Evgeny V. Nazarchuk, and Anastasiya I. Zadoya
Inorganic Chemistry Communications, 2014, Volume 50, Page 4
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Oleg I. Siidra, Evgeny V. Nazarchuk, Anatoly A. Petrunin, Roman A. Kayukov, and Sergey V. Krivovichev
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