Synthesis, Crystal Structure and Photoluminescence Property of Potassium Terbium Polyphosphate KTb(PO3)4
钱伟;朱忠其;张科;朱静
a (Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and engineering, Yunnan University, Kunming 650091, China)
b (State Key Laboratory of Structural Chemistry, Fuzhou 350002, China)
KTb(PO3)4的合成，结构和光学性质
QIAN Wei;ZHU Zhong-Qi;ZHANG Ke;ZHU Jing
a (Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials Science and engineering, Yunnan University, Kunming 650091, China)
b (State Key Laboratory of Structural Chemistry, Fuzhou 350002, China)
The potassium terbium polyphosphate crystal KTb(PO3)4 has been synthesized using a high temperature solution reaction method. The structure and composition were charac- terized by single-crystal X-ray diffraction, powder X-ray diffraction and elemental analysis. The compound crystallizes in the monoclinic space group P21/n with a = 10.3182(6), b = 8.9129(5), c = 10.7940(6) Å, β = 105.993(1)º, V = 954.3 Å3, Z = 4, Mr = 513.91, Dc = 3.577 g/cm3, μ = 8.585 mm-1, F(000) = 960, S = 0.955, (Δρ)max = 1.380, (Δρ)min = –3.428 e/Å3, the final R = 0.0301 and wR = 0.0400 for 2301 observed reflections with I > 2σ(I). In addition, pure powder of isostructural RbTb(PO3)4 was synthesized in order to investigate the optical property. Photoluminescence measurements show that both crystals ATb(PO3)4 (A = K (1), Rb (2)) are promising candidates to become solid-state visible green light-emitting sources.
采用高温熔盐法合成KTb(PO3)4晶体，通过单晶X射线衍射，粉末X射线衍射及元素分析法表征其晶体结构和组成。KTb(PO3)4晶体属于单斜晶系P21/n空间群，晶胞参数及测试条件如下：a = 10.3182(6), b = 8.9129(5), c = 10.7940(6) Å, β = 105.993(1)º, V = 954.3 Å3, Z = 4, Mr = 513.91, Dc = 3.577 g/cm3, μ = 8.585 mm-1, F(000) = 960, S = 0.955, (Δρ)max = 1.380, (Δρ)min = –3.428 e/Å3, the final R = 0.0301 and wR = 0.0400 for 2301 observed reflections with I > 2σ(I)。此外，合成了同结构的RbTb(PO3)4纯相粉末，并研究了ATb(PO3)4 (A = K (1), Rb (2))的光学性质。光学测试结果表明ATb(PO3)4 (A = K (1), Rb (2))可作为绿光发射的固态光源。
Supported by the National Natural Science Foundation of China (No. 20901066), the Natural Science Foundation of Yunnan Province (No. 2012FB122), the Education Science Foundation of Yunnan Province (No. 2013Z050), the Science Foundation of State Key Laboratory of Structural Chemistry (No. 20140012), Training Program for Young Academic and Technical Leader in Yunnan Province, and the Science Foundation of Key Laboratory of Micro- and Nano-materials and Technology in Yunnan Province (No. ZZ2016002)
通讯作者:
jzhu@ynu.edu.cn
E-mail: jzhu@ynu.edu.cn
引用本文:
钱伟;朱忠其;张科;朱静. Synthesis, Crystal Structure and Photoluminescence Property of Potassium Terbium Polyphosphate KTb(PO3)4[J]. 结构化学, 2017, 36(2): 236-241.
QIAN Wei;ZHU Zhong-Qi;ZHANG Ke;ZHU Jing. KTb(PO3)4的合成，结构和光学性质. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2017, 36(2): 236-241.
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