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Related Experiment Videos

Tetraphenylarsonium tetraiodothallate(III).

Anthony Linden1, Bruce D James

  • 1Institute of Organic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland. alinden@oci.unizh.ch

Acta Crystallographica. Section C, Crystal Structure Communications
|August 3, 2002
PubMed
Summary

The crystal structure of (C(24)H(20)As)[TlI(4)] reveals a distorted tetrahedral [Thallium(IV) Iodide] anion with D(2d) symmetry. The arsenic cation exhibits S(4) symmetry, with slight stretching along the c axis.

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Area of Science:

  • Inorganic Chemistry
  • Crystallography
  • Solid-State Chemistry

Background:

  • Understanding the structural properties of complex inorganic compounds is crucial for materials science.
  • Thallium iodide compounds are known for their diverse structural motifs and potential applications.

Purpose of the Study:

  • To elucidate the crystal structure and symmetry of the title compound, (C(24)H(20)As)[TlI(4)].
  • To analyze the coordination geometry and distortions of the [Thallium(IV) Iodide] anion and the arsenic cation.

Main Methods:

  • Single-crystal X-ray diffraction analysis.
  • Symmetry analysis of the crystal structure.
  • Bond length and angle measurements.

Main Results:

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  • The compound crystallizes with the [Thallium(IV) Iodide] anion possessing D(2d) symmetry, exhibiting tetragonal distortion.
  • The Tl-I bond length was determined to be 2.7691 (3) Å.
  • The arsenic cation displays S(4) symmetry, with its tetrahedral coordination slightly stretched along the c axis.

Conclusions:

  • The crystal structure of (C(24)H(20)As)[TlI(4)] is characterized by a distorted tetrahedral [Thallium(IV) Iodide] anion and an arsenic cation with S(4) symmetry.
  • The observed distortions provide insights into the bonding and packing in this inorganic compound.