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Cs(10)Ta(29.27)o(78).

Martin Zeuner¹, Alexander Hofer, Wolfgang Schnick

¹Department Chemie und Biochemie, Ludwig-Maximilians-Universität München, Lehrstuhl für Anorganische Festkörperchemie, Butenandtstrasse 5-13, D-81377 München, Germany.

Acta Crystallographica. Section E, Structure Reports Online

|May 18, 2011

Summary

This summary is machine-generated.

Single crystals of caesium tantalate(V), Cs(10)Ta(29.27)O(78), were serendipitously synthesized. Its 3D framework, built from specific tantalum oxide layers and linked by octahedra, contains Cs(+) ions and exhibits Ta deficiency.

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Area of Science:

Solid-state chemistry
Inorganic chemistry
Crystallography

Background:

Caesium tantalates are complex inorganic compounds with potential applications.
Understanding the crystal structure of novel tantalates is crucial for materials science.

Purpose of the Study:

To characterize the crystal structure of a newly synthesized caesium tantalate compound.
To investigate the atomic arrangement and potential defects within the crystal structure.

Main Methods:

Single crystal X-ray diffraction was used to determine the crystal structure.
Energy-dispersive X-ray analysis verified the elemental composition.

Main Results:

The crystal structure of Cs(10)Ta(29.27)O(78) was elucidated, revealing a 3D framework of (Ta(6)O(15))(n) and (Ta(3)O(9))(n) layers.
This framework incorporates three independent Cs(+) ions within its cavities.
A tantalum deficiency was identified at a trigonal prismatic coordinated site.

Conclusions:

The serendipitous synthesis yielded a novel caesium tantalate with a complex 3D framework structure.
The presence of Ta deficiency and specific ion locations provides insights into the material's properties.