4.6 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

期刊

CRYSTALS
卷 11, 期 7, 页码 -

出版社

MDPI
DOI: 10.3390/cryst11070807

关键词

shchurovskyite; synthesis; X-ray diffraction; crystal structure; oxocentered tetrahedra

资金

  1. Russian Science Foundation [19-17-00038]
  2. Russian Science Foundation [19-17-00038] Funding Source: Russian Science Foundation

向作者/读者索取更多资源

Single crystals of two novel compounds related to shchurovskyite were synthesized and structurally characterized. Both compounds have Cu-based layers connected differently, with compound 1 having the simplest structure and compound 2 being the most complex in the family.
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.

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