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Cd4As2Br3.

Mohammed Kars1, Thierry Roisnel2, Vincent Dorcet2

  • 1Université Houari-Boumedienne, Faculté de Chimie, Laboratoire Sciences des Matériaux, BP 32 El-Alia Bab-Ezzouar, Algeria.

Acta Crystallographica. Section E, Structure Reports Online
|April 26, 2014
PubMed
Summary
This summary is machine-generated.

Single crystals of tetra-cadmium biarsenide tri-bromide (Cd4As2Br3) were synthesized. This novel structure features unique tetrahedra and octahedra arrangements with cadmium-bromide contacts.

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Area of Science:

  • Solid State Chemistry
  • Crystallography
  • Materials Science

Background:

  • Cadmium and mercury pnictidohalides are a family of compounds with the general formula M4A2X3.
  • Understanding the structural diversity and properties of these materials is crucial for potential applications.

Purpose of the Study:

  • To synthesize single crystals of tetra-cadmium biarsenide tri-bromide (Cd4As2Br3).
  • To elucidate the crystal structure and bonding characteristics of Cd4As2Br3.

Main Methods:

  • Single crystals of Cd4As2Br3 were grown using chemical transport reactions.
  • The crystal structure was determined through crystallographic analysis.

Main Results:

  • Cd4As2Br3 was successfully synthesized as single crystals.
  • The structure is isotypic with known M4A2X3 compounds, featuring two independent As atoms and two independent Cd atoms.
  • The structure comprises AsCd4 tetrahedra and isolated As2Cd6 octahedra with As-As dumbbells, bridged by Br atoms via Cd...Br contacts.

Conclusions:

  • The crystal structure of Cd4As2Br3 was determined, revealing a complex arrangement of polyhedra.
  • The findings contribute to the understanding of the structural chemistry of cadmium pnictidohalides.