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Zn(2)(TeO(3))Br(2).

Dong Zhang1, Mats Johnsson

  • 1Inorganic Chemistry, Stockholm University, S-106 91 Stockholm, Sweden.

Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
PubMed
Summary
This summary is machine-generated.

Dizinc tellurium dibromide trioxide, Zn(2)(TeO(3))Br(2), was synthesized. This new compound features a layered crystal structure with unique building units, offering insights into inorganic material synthesis.

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Area of Science:

  • Inorganic Chemistry
  • Solid-State Chemistry
  • Crystallography

Background:

  • Exploration of novel inorganic compounds with layered structures is crucial for materials science.
  • Understanding the structural motifs and bonding in tellurium-containing compounds provides insights into their properties.
  • Synthesis of new materials is essential for expanding the known chemical space and potential applications.

Purpose of the Study:

  • To synthesize single crystals of dizinc tellurium dibromide trioxide, Zn(2)(TeO(3))Br(2).
  • To elucidate the crystal structure of the newly synthesized compound.
  • To compare the structure of Zn(2)(TeO(3))Br(2) with known isostructural compounds and minerals.

Main Methods:

  • Single crystals of Zn(2)(TeO(3))Br(2) were synthesized using a transport reaction.
  • The synthesis was performed in sealed evacuated silica tubes.
  • The crystal structure was determined by analyzing the arrangement of building units.

Main Results:

  • Successful synthesis of single crystals of dizinc tellurium dibromide trioxide, Zn(2)(TeO(3))Br(2).
  • The compound exhibits a layered crystal structure.
  • Key building units identified include [ZnO(4)Br] distorted square pyramids, [ZnO(2)Br(2)] distorted tetra-hedra, and [TeO(3)E] tetra-hedra, with E representing the tellurium lone pair.
  • These units are interconnected via shared edges and corners, forming neutral layers.
  • Bromine atoms and tellurium lone pairs are oriented outwards from the layer surfaces.
  • Zn(2)(TeO(3))Br(2) is confirmed to be isostructural with Zn(2)(TeO(3))Cl(2), CuZn(TeO(3))(2), Co(2)(TeO(3))Br(2), and the mineral sophiite (Zn(2)(SeO(3))Cl(2)).

Conclusions:

  • A new compound, dizinc tellurium dibromide trioxide (Zn(2)(TeO(3))Br(2)), has been synthesized and structurally characterized.
  • The layered structure is built from specific coordination polyhedra and influenced by the tellurium lone pair.
  • The isostructural relationship highlights potential trends in layered tellurium oxyhalides and related minerals.