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Abstract <p>Hydrothermal synthesis yielded single crystals of a copper uranyl vanadate, Cu(UO<sub>2</sub>)<sub>2</sub>(V<sub>2</sub>O<sub>8</sub>)(H<sub>2</sub>O)<sub>4</sub>. The compound crystallizes in the monoclinic system: space group <i>C</i>2<i>/c</i>, <i>a</i> = 16.0480(7), <i>b</i> = 8.2692(3), <i>c</i> = 10.6161(4) Å, β = 100.282(3)°, <i>V</i> = 1386.18(9) Å<sup>3</sup>, <i>Z</i> = 4, <i>R</i><sub>1</sub> = 0.032. The crystals were characterized by X-ray diffraction analysis. The structure is based on layered complexes composed of uranyl pentagonal bipyramids and vanadium tetragonal pyramids linked through shared vertices and edges, with a topology typical of minerals of the francevillite and carnotite groups and their synthetic analogs.</p>

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Crystal Structure of a Copper-Containing Uranyl Vanadate, Cu(UO2)2(V2O8)(H2O)4

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • I. V. Kornyakov,
  • Ya. G. Tagirova,
  • E. N. Kotel’nikova,
  • V. V. Gurzhiy

摘要

Abstract

Hydrothermal synthesis yielded single crystals of a copper uranyl vanadate, Cu(UO2)2(V2O8)(H2O)4. The compound crystallizes in the monoclinic system: space group C2/c, a = 16.0480(7), b = 8.2692(3), c = 10.6161(4) Å, β = 100.282(3)°, V = 1386.18(9) Å3, Z = 4, R1 = 0.032. The crystals were characterized by X-ray diffraction analysis. The structure is based on layered complexes composed of uranyl pentagonal bipyramids and vanadium tetragonal pyramids linked through shared vertices and edges, with a topology typical of minerals of the francevillite and carnotite groups and their synthetic analogs.