Synthesis of K5LnLi2F10(Ln=La, Gd, Y) and luminescence of Ce^3^+

Abstract

The compounds, K5LnLi2F10 (Ln = La, Gd, Y) were synthesized by solid-state reaction in Ar atomsphere Powder x-ray diffraction patterns showed that K5LnLi2F10 is isostructural with K5NdLi2F10 (KNLF) except K5 YLi2F10. The cell parameters and vols. of K5LnLi2F10 (Ln = La, Ce, Gd) were calculated They decrease regularly with radii of La3+, Ce3+ and Gd3+. The excitation and fluorescent spectra of K5CexLn1-xLi2Fe10 were determine The excitation and emission wavelength of Ce3+ is really independent of Ln3+. This phenomenon is discussed.

Key words: LANTHANUM COMPOUNDS, CRYSTAL STRUCTURE, X-RAY DIFFRACTION ANALYSIS, UNIT CELL, SPECTROGRAPHIC ANALYSIS, CERIUM COMPOUNDS, POTASSIUM FLUORIDE, CERIUM, LITHIUM FLUORIDE, LASER SPECTROMETRY

CLC Number:

O657
O74

Cite this article

ZHANG JILIN;HONG GUANGYAN;LI YOUMO. Synthesis of K5LnLi2F10(Ln=La, Gd, Y) and luminescence of Ce^3^+[J]. Acta Chimica Sinica, 1989, 47(10): 958-961.

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K5LnLi2F10(Ln=La, Gd, Y)的合成和Ce^3^+在其中的发光