| Structure of Low Temperature Phase b-Ba_3Y(BO_3)_3 Crystal |
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| 作者姓名： | PAN Shang-Kea b WANG Guo-Fua② a |
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| 作者单位： | PAN Shang-Kea，b WANG Guo-Fua② a(State Key Laboratory of Structural Chemistry，Fujian Institute of Research on the Structure of Matter，The Chinese Academy of Sciences，Fuzhou，Fujian 350002，China) b(Graduate School of the Chinese Academy of Sciences，Beijing 100039，China) |
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| 基金项目： | The project was supported by the Key Project of Science and Technology of Fujian province (2001H107)，and the National Natural Science Foundation of China (N0. 50272066) |
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| 摘 要： | 1 INTRODUCTION Recently the series of compounds M3Ln(BO3)3 (M = Sr, Ba and Ln = LaLu, Sc, Y) with space group P63cm or -3R have been reported1～5], and some of them exhibit interesting optical properties when doped with the active Cr3+ or Yb3+ ions as laser materials. For example, Yb3+-doped Sr3Y- (BO3)3 crystal is a promising laser material for both tunable and femtosecond laser applications6～8]. The Ba3Y(BO3)3 crystal melts congruently at 1256 ℃ and has a phase transitio…
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Structure of Low Temperature Phase b-Ba_3Y(BO_3)_3 Crystal |
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| Abstract: | Crystals of the low temperature phase b-Ba3Y(BO3)3 have been synthesized by the flux method. The structure of the title compound crystallizes in the hexagonal system, space group P63cm with the following parameters: a = 9.416(3), c = 17.536(8) ? V = 1346.6(8) ?, Ba3YB3O9, Mr = 677.36, Z = 6, Dc = 5.012 g/cm3, l(MoKa) = 0.71073 ? m = 19.409 mm-1, Flack parameter = 0.02(3), F(000) = 1764, R = 0.0714 and wR = 0.1696 for 1076 observed reflections with I > 2s(I). The compound contains two sets of YO6 octahedra, four sets of BaO9 polyhedra and three sets of BO3 planar triangles. |
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| Keywords: | synthesis crystal structure double borate |
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