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Rb4Zr3Te16, a one‐dimensional ­zirconium telluride synthesized from molten salt

Rb4Zr3Te16, a one‐dimensional ­zirconium telluride synthesized from molten salt A new ternary metal telluride, tetra­rubidium tri­zircon­ium hexa­deca­telluride, Rb4Zr3Te16, has been synthesized through reactions at 698 K using elemental Zr and an Rb2Te/Te melt as a reactive flux, and characterized by single‐crystal X‐ray diffraction. Although the structure of this compound is very similar to its Cs4Zr3Te16 analogue, the compounds crystallize in different space groups, the former in C2h6 –C2/c and the latter in C2h5 –P21/n. Both compounds consist of infinite one‐dimensional chains of [Zr3Te16]n4n− separated from each other by Rb+ or Cs+ cations. Within the chain, each Zr atom is surrounded by eight Te atoms to give a distorted bicapped trigonal prism polyhedron. There are two unambiguous Te—Te single bonds of 2.758 (2) and 2.765 (2) Å, and four longer Te⋯Te interatomic distances in the range of 2.9277 (14)–3.0445 (18) Å that indicate weak interactions between the adjacent Te atoms. Because of the wide range of Te⋯Te interactions, simple formalisms cannot be used to describe the bonding within the chain. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section C Crystal Structure Communications Wiley

Rb4Zr3Te16, a one‐dimensional ­zirconium telluride synthesized from molten salt

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References (16)

Publisher
Wiley
Copyright
Copyright © 2000 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0108-2701
eISSN
2053-2296
DOI
10.1107/S0108270199011956
Publisher site
See Article on Publisher Site

Abstract

A new ternary metal telluride, tetra­rubidium tri­zircon­ium hexa­deca­telluride, Rb4Zr3Te16, has been synthesized through reactions at 698 K using elemental Zr and an Rb2Te/Te melt as a reactive flux, and characterized by single‐crystal X‐ray diffraction. Although the structure of this compound is very similar to its Cs4Zr3Te16 analogue, the compounds crystallize in different space groups, the former in C2h6 –C2/c and the latter in C2h5 –P21/n. Both compounds consist of infinite one‐dimensional chains of [Zr3Te16]n4n− separated from each other by Rb+ or Cs+ cations. Within the chain, each Zr atom is surrounded by eight Te atoms to give a distorted bicapped trigonal prism polyhedron. There are two unambiguous Te—Te single bonds of 2.758 (2) and 2.765 (2) Å, and four longer Te⋯Te interatomic distances in the range of 2.9277 (14)–3.0445 (18) Å that indicate weak interactions between the adjacent Te atoms. Because of the wide range of Te⋯Te interactions, simple formalisms cannot be used to describe the bonding within the chain.

Journal

Acta Crystallographica Section C Crystal Structure CommunicationsWiley

Published: Jan 1, 2000

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