Structure of KLa(WO4)2 with a novel isolated La polyhedron |
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| Authors: | Xiumei Han Zhoubin Lin Zushu Hu Guofu Wang |
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| Affiliation: | (1) Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China, |
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| Abstract: | The compound KLa(WO4)2 crystallizes in the tetragonal with space group 14(l)/a (C4h 6) and cell parameters a=b=5.447 ?, c=12.080 ?, Z=1, V=358.41 ?3, D=3.121 g/cm3, F(000)=288, final R=0.079. Rw=0.082 for 208 observed reflections with I ≥ 3 σ > (I). The structure consists of WO4 tetrahedron, KO8 and LaO8 polyhedrons. LaO8 polyhedrons are isolated from each other, with La3+ ions joined by means of La-O-W-O-La. This structural characteristic will result in a weak interaction between active ions and a lower fluorescence concentration quenching effect. Electronic Publication |
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| Keywords: | Crystal structure Potassium lanthanum tungsten KLa(WO4)2 |
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