Rare-earth cadmium tellurite chlorides with a structural type exhibiting [Ln12(TeO3)12] slabs alternating with CdCl 6 octahedral layers

Ivan D. Kharitonov, Dmitri O. Charkin, Peter S. Berdonosov*, Cameron Black, Lewis J. Downie, Philip Lightfoot, Valery A. Dolgikh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A series of new rare-earth cadmium metal tellurite chlorides were synthesized by the salt flux technique and characterized by single-crystal X-ray diffraction. The new compounds CdSm2(TeO3) 2Cl4 (I), CdEu2(TeO3) 2Cl4 (II), and CdGd2(TeO3) 2Cl4 (III), adopt layered structures corresponding to sequences of metal oxide [LnTeO3] and metal halide [Cd 1-xCl3] layers. They expand the known family of 2D rare-earth selenium oxyhalides into the realm of tellurium(IV) compounds and add a new targeted structure type involving rock salt slabs formed by edge-sharing CdCl6 octahedra. The major differences in the structures of Se and Te compounds lie in the composition of the cationic slabs {[Ln 11(SeO3)12]9+ vs. [Ln 12(TeO3)12]12+} and symmetry (orthorhombic for selenites vs. tetragonal for tellurites).

Original languageEnglish
Pages (from-to)3140-3146
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Issue number19
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Crystal engineering
  • Lanthanides
  • Layered compounds
  • Structure elucidation
  • Tellurium

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