Flux Growth and Crystal Structure Refinement of Calcite Type Borate GaBO3

Crystals

Shichao Wang¹  Ning Ye²  Kenneth R. Poeppelmeier¹ 

[1] Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA; E-Mail:;Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 West Yangqiao Road, Fuzhou 350002, China; E-Mail:

关键词: borates;    gallium borate;    calcite type;    crystal growth;    flux;   

DOI  :  10.3390/cryst5020252

来源: mdpi

【 摘 要 】

A single crystal of gallium borate, GaBO₃, 4 × 4 × 0.2 mm³ in size has been grown by spontaneous crystallization with a molten flux based on a Bi₂O₃-3B₂O₃ solvent. From single crystal X-ray diffraction measurement, GaBO₃ was found to crystallize in the trigonal calcite type, space group R-3c, with cell dimensions a = 4.56590(10) and c = 14.1764(4) Å, Z = 6. Layers of distorted [GaO₆] octahedra are interleaved by layers of triangular planar [BO₃] unites. The transmission spectrum on a single crystal indicated that the band gap of GaBO₃ is 3.62 eV.

【 授权许可】

CC BY   
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