share
Acta Chimica Sinica ›› 1995, Vol. 53 ›› Issue (5): 468-472. Previous Articles Next Articles
Original Articles
贯军;汤中佳;吴国庆
发布日期:
GUAN JUN;TANG ZHONGJIA;WU GUOQING
Published:
Share
Novel compound KEuLaF~6 was synthesized by reducing tysonite structure rare earth mixed trifluoride Eu~0.5La~0.5F~3 with metallic potassium. The new compound was the first member of the compounds which have the general formula ABCF~6 with B=divalent and C=trivalent rare earth elements. The crystal structure of the new compound may be discribed as a stuffed structure of UCl~3, related to the structure of gagarinite and NaNdF~4; crystal system; trignal; space group: P3; Lattice parameters: a=646.8(6), c=373.9(4)pm, c/a=0.578, V=135.47·10^6(12)pm^3, D~p~y~c=5.37, D~x=5.44g·cm^-^3, Z=1. X-ray powder diffraction pattern with measured and calculated intensities, IR and fluorescence spectra were given.
Key words: FLUORIDE, LANTHANUM, STRUCTURAL DESIGN, EUROPIUM, RARE EARTH
CLC Number:
O611
GUAN JUN;TANG ZHONGJIA;WU GUOQING. Novel compound KEuLaF~6, its synthesis, structure of properties[J]. Acta Chimica Sinica, 1995, 53(5): 468-472.
Export EndNote|Reference Manager|ProCite|BibTeX|RefWorks