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.
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
