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Distrontium lithium beryllium triborate, Sr(2)LiBeB(3)O(8).

Na Yu¹, Ning Ye

¹Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online

|May 17, 2012

Summary

Single crystals of distrontium lithium beryllium triborate, Sr(2)LiBeB(3)O(8), were synthesized. The crystal structure reveals connected [BeB(3)O(8)](8-) units forming chains, with Sr(2+) and Li(+) cations interspersed.

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Area of Science:

Inorganic Chemistry
Crystal Chemistry
Materials Science

Background:

Beryllium borates are a class of inorganic compounds with diverse structures and properties.
Understanding the crystal structure of novel borates is crucial for exploring their potential applications.

Purpose of the Study:

To synthesize single crystals of distrontium lithium beryllium triborate, Sr(2)LiBeB(3)O(8).
To elucidate the crystal structure and cation coordination within this novel compound.

Main Methods:

Single crystals were obtained via spontaneous nucleation from a high-temperature melt.
The crystal structure was determined, revealing the arrangement of atoms and polyhedral units.

Main Results:

The structure of Sr(2)LiBeB(3)O(8) features interconnected [BeB(3)O(8)](8-) units forming chains along the b axis.
[BeB(2)O(7)](6-) rings composed of BeO(4) tetrahedra and BO(3) triangles are linked by additional BO(3) triangles.
Strontium cations (Sr(2+)) exhibit seven- or eight-coordination, while lithium cations (Li(+)) are tetra-coordinated.

Conclusions:

The study successfully synthesized and characterized Sr(2)LiBeB(3)O(8).
The crystal structure demonstrates a unique chain-like arrangement of beryllium borate units.
The coordination environments of Sr(2+) and Li(+) cations provide insights into the compound's stability and potential properties.