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Volume 11
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10.3390/cryst11070807
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Article

Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4

by
Ilya V. Kornyakov
1,2 and
Sergey V. Krivovichev
1,3,*
1
Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, University Emb. 7/9, 199034 Saint-Petersburg, Russia
2
Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic, Kola Science Centre, Russian Academy of Science, Fesmana 14, 184209 Apatity, Russia
3
Nanomaterials Research Center, Federal Research Center–Kola Science Center, Russian Academy of Sciences, Fersmana Str. 14, 184209 Apatity, Russia
*
Author to whom correspondence should be addressed.
Crystals 2021, 11(7), 807; https://doi.org/10.3390/cryst11070807
Submission received: 28 June 2021 / Revised: 7 July 2021 / Accepted: 9 July 2021 / Published: 11 July 2021
(This article belongs to the Special Issue Mineralogical Crystallography (2nd Edition))
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Abstract

Single crystals of two novel shchurovskyite-related compounds, K2Cu[Cu3O]2(PO4)4 (1) and K2.35Cu0.825[Cu3O]2(PO4)4 (2), were synthesized by crystallization from gaseous phase and structurally characterized using single-crystal X-ray diffraction analysis. The crystal structures of both compounds are based upon similar Cu-based layers, formed by rods of the [O2Cu6] dimers of oxocentered (OCu4) tetrahedra. The topologies of the layers show both similarities and differences from the shchurovskyite-type layers. The layers are connected in different fashions via additional Cu atoms located in the interlayer, in contrast to shchurovskyite, where the layers are linked by Ca2+ cations. The structures of the shchurovskyite family are characterized using information-based structural complexity measures, which demonstrate that the crystal structure of 1 is the simplest one, whereas that of 2 is the most complex in the family.
Keywords: shchurovskyite; synthesis; X-ray diffraction; crystal structure; oxocentered tetrahedra shchurovskyite; synthesis; X-ray diffraction; crystal structure; oxocentered tetrahedra
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MDPI and ACS Style

Kornyakov, I.V.; Krivovichev, S.V. Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4. Crystals 2021, 11, 807. https://doi.org/10.3390/cryst11070807

AMA Style

Kornyakov IV, Krivovichev SV. Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4. Crystals. 2021; 11(7):807. https://doi.org/10.3390/cryst11070807

Chicago/Turabian Style

Kornyakov, Ilya V., and Sergey V. Krivovichev. 2021. "Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4" Crystals 11, no. 7: 807. https://doi.org/10.3390/cryst11070807

APA Style

Kornyakov, I. V., & Krivovichev, S. V. (2021). Crystal Chemical Relations in the Shchurovskyite Family: Synthesis and Crystal Structures of K2Cu[Cu3O]2(PO4)4 and K2.35Cu0.825[Cu3O]2(PO4)4. Crystals, 11(7), 807. https://doi.org/10.3390/cryst11070807

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