Cs7Sm11[TeO3]12Cl16 and Rb7Nd11[TeO3]12Br16, the new tellurite halides of the tetragonal Rb6LiNd11[SeO3]12Cl16 structure type

Dmitri O. Charkin , Cameron Black, Lewis James Downie, Dmitry E. Sklovsky, Peter S. Berdonosov, Andrei V. Olenev , Wuzong Zhou, Philip Lightfoot, Valery A. Dolgikh

Research output: Contribution to journalArticlepeer-review

Abstract

Two new rare-earth – alkali – tellurium oxide halides were synthesized by a salt flux technique and characterized by single-crystal X-ray diffraction. The structures of the new compounds Cs7Sm11[TeO3]12Cl16 (I) and Rb7Nd11[TeO3]12Br16 (II) (both tetragonal, space group I4/mcm) correspond to the sequence of [MLn11(TeO3)12] and [M6×16] layers and bear very strong similarities to those of known selenite analogs. We discuss the trends in similarities and differences in compositions and structural details between the Se and Te compounds; more members of the family are predicted.

Original languageEnglish
Pages (from-to)56-61
JournalJournal of Solid State Chemistry
Volume232
Early online date30 Aug 2015
DOIs
Publication statusPublished - Dec 2015

Keywords

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

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