Synthesis, structure, and optical properties of a series of quaternary oxides, K2Ba(MO4)2 (M聽=聽Cr, Mo, W)
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- 作者：W. Michael Chance ; Hans-Conrad zur Loye
- 关键词：Oxides ; Crystal growth ; Hydroflux ; Tungstate ; Molybdate ; Chromate
- 刊名：Solid State Sciences
- 出版年：February, 2014
- 年：2014
- 卷：28
- 期：Complete
- 页码：90-94
- 全文大小：1326 K
文摘
Single crystals of a family of quaternary oxides K2Ba(MO4)2 (M聽=聽Cr, Mo, W) have been grown for the first time. The crystals were grown in a hydroxide-based hydroflux. The compounds crystallize in space group R m and, according to single-crystal X-ray diffraction structure determination, are isostructural with the mineral Palmierite. All compounds show anti-site mixing of the potassium and barium. The degree of mixing appears to be determined indirectly by the M-O bond distance. Diffuse reflectance spectra and room-temperature luminescence were measured for each compound.