Crystal Structure and Luminescent Properties of a New Rare-earth Borate K3Pr3（BO3）4  

作　　者：SHI Jian-Chao ZHAO Dan XUE Ya-Li ZHANG Shi-Rui LI Fei-Fei 时建朝;赵丹;薛亚丽;张世瑞;李飞飞(College of Chemistry and Chemical Engineering,Henan Polytechnic University)

机构地区：[1]College of Chemistry and Chemical Engineering,Henan Polytechnic University

出　　处：《Chinese Journal of Structural Chemistry》2019年第5期727-736,668,共11页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(No.21201056);the Fundamental Research Funds for the Universities of Henan Province(No.NSFRF170301);Natural Science Foundation of Henan Province(No.182300410277);the Opening Project of Key Laboratory of Polyoxometalate Science of Ministry of Education

摘　　要：A new borate K3Pr3（BO3）4 has been prepared using a high temperature flux method and structurally characterized by single-crystal X-ray diffraction analyses.It crystallizes in triclinic system,space group ■ with a=9.0814（10）,b=10.8052（12）,c=14.0885（16）?,α=69.800（1）°,β=89.922（1）o,γ=89.892（1）°,V=1297.4（3）?3,Z=4,Mr=775.27,Dc=3.969 g/cm3,F（000）=1400,μ（MoKα）=12.11 mm-1,R（F2>2σ（F2））=0.028 and wR（F2）=0.054.Interestingly,the crystal of K3Pr3（BO3）4 was twinned by pseudo-merohedry that is mimic monoclinic space group P2/c.The structure of K3Pr3（BO3）4 exhibits a three-dimensional（3D）network based on isolated anionic（BO3）3- units that are further bridged by K+and Pr3+ions.Furthermore,X-ray diffraction（XRD）,IRspectrum and photoluminescence（PL）properties were studied.

关 键 词：BORATE X-ray DIFFRACTION TWINNING photoluminescence 

分 类 号：TQ[化学工程]