DOI

  • Dmitri O. Charkin
  • Mishel R. Markovski
  • Oleg I. Siidra
  • Diana O. Nekrasova
  • Vasili Yu Grishayev

Using solution evaporation techniques, we succeeded in preparation of new members essentially extending the layered copper hydrogen selenite family, (AX)[Cu(HSeO3)2] with A = Na, K, Rb, Cs, and NH4, and X = Cl and Br. Bromides and chlorides are isostructural in the family of described new compounds crystallizing in three different structure types. (NaX)[Cu(HSeO3)2] and (KX)[Cu(HSeO3)2] (X = Cl, Br) are monoclinic, whereas (AX)[Cu(HSeO3)2] (A = NH4, Rb, Cs; X = Cl, Br) are orthorhombic. Upon the enlargement of the A+ ionic radii inserted in the interlayer between the neighboring [Cu(HSeO3)2] slabs, the effective distance is increasing and results in essential elongation of the apical Cu-X (X = Cl, Br) distances. Three different types of CuO4Xn (n = 0-2) polyhedra are formed. The observed trend is an interesting example of the chemical tuning of the Cu2+ coordination environments.

Original languageEnglish
Pages (from-to)739-747
Number of pages9
JournalZeitschrift fur Kristallographie - Crystalline Materials
Volume234
Issue number11-12
DOIs
StatePublished - 18 Dec 2019

    Research areas

  • Alkali metals, Copper, Crystal engineering, Layered materials, Salt-inclusion solids, Selenites

    Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Inorganic Chemistry

ID: 53747767