Crystal growth and structure of three new neodymium containing silicates: Na0.50Nd4.50(SiO4)3O, Na0.63Nd4.37(SiO4)3O0.74F0.26 and Na4.74Nd4.26(O0.52F0.48)[SiO4]4
作者： Allison M. Latshaw , Mark D. Smith , Hans-Conrad zur Loye
DOI: 10.1016/J.SOLIDSTATESCIENCES.2014.06.005
关键词: Single crystal 、 Neodymium 、 Crystal growth 、 Eutectic system 、 Apatite 、 Crystal 、 Tetragonal crystal system 、 Crystallography 、 Materials science 、 Crystal structure
摘要: Abstract Single crystals of Na0.50Nd4.50(SiO4)3O, Na0.63Nd4.37(SiO4)3O0.74F0.26, and Na4.74Nd4.26(O0.52F0.48)[SiO4]4 were synthesized via flux growth using a NaF/KF eutectic the crystal structure was determined by single X-ray diffraction. Na0.50Nd4.50(SiO4)3O Na0.63Nd4.37(SiO4)3O0.74F0.26 adopt apatite crystallize in hexagonal space group P63/m, while crystallizes tetragonal I-4 exhibits rare-earth mixing on sodium site. The unit cells are a = 9.5400(3) A c = 7.0331(5) A for a = 9.5533(3) A c = 7.0510(4) A a = 12.1255(3) A c = 5.4656(2) A Na4.74Nd4.26(O0.52F0.48)[SiO4]4. These three compounds exhibit three-dimensional structures that discussed detail this paper.
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