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Barium antimonide oxide, Ba3Sb2O.

M Boss¹, F Pickhard, M Zumdick

¹Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 21, D-79104 Freiburg, Germany.

Acta Crystallographica. Section C, Crystal Structure Communications

|May 16, 2001

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Researchers discovered a new barium antimonide oxide, Ba(3)Sb(2)O, featuring unique [Sb(2)](4-) anions. This material exhibits a novel crystal structure with implications for understanding Zintl phases and oxide chemistry.

Area of Science:

Solid State Chemistry
Inorganic Materials Science
Crystallography

Background:

Barium antimonide oxides represent a class of inorganic compounds with potential for novel electronic and structural properties.
Understanding the anionic constitution and coordination environments is crucial for predicting material behavior.

Purpose of the Study:

To characterize the crystal structure and anionic composition of a newly synthesized barium antimonide oxide, Ba(3)Sb(2)O.
To compare the observed structural features with known Zintl phases and related oxide materials.

Main Methods:

Single-crystal X-ray diffraction for structure determination.
Analysis of bond distances and coordination geometries.

Main Results:

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The compound Ba(3)Sb(2)O crystallizes in a new structure type.
It features discrete [Sb(2)](4-) anions and O(2-) anions.
Sb-Sb distances are comparable to those in electron-precise Zintl phases, and O(2-) exhibits tetrahedral coordination.

Conclusions:

Ba(3)Sb(2)O represents a novel structural motif in antimonide oxides.
The observed [Sb(2)](4-) anion and tetrahedral oxygen coordination provide insights into bonding in barium-rich metallide oxides.