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Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

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Published on: May 23, 2018

K(3)VO(2)(V(2)As(2)O(12)).

Safa Ezzine¹, Mohamed Faouzi Zid, Ahmed Driss

¹Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences, Université de Tunis-ElManar, 2092 El-Manar, Tunis, Tunisia.

Acta Crystallographica. Section E, Structure Reports Online

|May 18, 2011

Summary

Researchers synthesized a new potassium vanadium arsenate compound, K(3)VO(2)(V(2)As(2)O(12)), using solid-state reactions. This novel material features a unique three-dimensional framework constructed from vanadium and arsenic oxide polyhedra.

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Area of Science:

Inorganic Chemistry
Solid-State Chemistry
Crystallography

Background:

Vanadium arsenates are an important class of inorganic compounds with diverse structural motifs.
Understanding the synthesis and structural properties of novel vanadium-based materials is crucial for potential applications.

Purpose of the Study:

To synthesize and characterize a new potassium vanadium arsenate compound.
To elucidate the crystal structure and bonding of the synthesized material.

Main Methods:

Solid-state reaction synthesis at 743 K.
X-ray diffraction for crystal structure determination.

Main Results:

A new compound, tripotassium trivanadium bis-(arsenate) hexa-oxide (K(3)VO(2)(V(2)As(2)O(12))), was successfully synthesized.
The crystal structure features a 3D framework composed of VO(5) pyramids, VO(4) tetrahedra, and AsO(4) tetrahedra linked by corner-sharing.
Two independent K(+) cations reside within tunnels along the a and b directions.

Conclusions:

The synthesis of K(3)VO(2)(V(2)As(2)O(12)) expands the known family of potassium vanadium arsenates.
The complex 3D framework structure offers insights into the coordination chemistry of vanadium and arsenic.