Citation: ZHU Jing, KONG Hui-Lan, CHEN Hui, ZHU Zhong-Qi. Sodium Holmium Polyphosphate NaHo(PO₃)₄ with [P₄O₁₂]^4- Spiral Chains: Synthesis, Crystal Structure, and Luminescent Properties[J]. Chinese Journal of Structural Chemistry, ;2014, 33(4): 619-625. shu

Sodium Holmium Polyphosphate NaHo(PO₃)₄ with [P₄O₁₂]^4- Spiral Chains: Synthesis, Crystal Structure, and Luminescent Properties

a.
a. Department of Material Science and Engineering, Yunnan University, Kunming 650091, China;
b.
b. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Received Date: 22 September 2013
Available Online: 22 January 2014
Fund Project: Supported by the Natural Science Foundation of Yunnan Province (No. 2012FB122) (No. 2012FB122) the Education Science Foundation of Yunnan Province (No. 2013Z050) (No. 2013Z050) the Science Foundation of State Key Laboratory of Structural Chemistry (No. 20140012) (No. 20140012)

Sodium holmium polyphosphate crystal, NaHo(PO₃)₄, has been synthesized by the high temperature solution reaction and characterized by X-ray diffraction analysis, EDX, IR, UV-vis-NIR, and PL spectra. The structure belongs to the monoclinic system, space group P2₁/n with Z=4, a=7.181(3), b=13.059(5) and c=9.730 (4) Å. It is described as a three-dimensional (3D) architecture made up of [P₄O₁₂]^4- anionic spiral chains and HoO₈ polyhedra by corner-sharing. The 8-coordinated sodium atoms are located in infinite tunnels. The results of EDX and IR spectrum are in good agreement with the crystallographic analysis. In addition, NaHo(PO₃)₄ exhibits visible light emission in the solid state at room temperature.
- polyphosphate,
- solid-state structure,
- luminescence
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