Raman Spectroscopic Study of Rare Earth Chlorides in Alkali Chloride Eutectic Melts

被引：25

作者：

Uda, Takeshi ^{[1
,2
]}

Fujii, Toshiyuki ^{[1
]}

Iwadate, Yasuhiko ^{[3
]}

Uehara, Akihiro ^{[1
]}

Yamana, Hajimu ^{[1
]}

机构：

[1] Kyoto Univ, Div Nucl Engn Sci, Inst Res Reactor, 2-1010 Asashiro Nishi, Osaka 5900494, Japan

[2] Kyoto Univ, Grad Sch Engn, Nishikyo Ku, Kyoto 6158530, Japan

[3] Chiba Univ, Grad Sch Engn, Inage Ku, Chiba 2638522, Japan

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2013年 / 639卷 / 05期

关键词：

Rare earths; Molten salt; Alkali metals; Chloride; Raman spectroscopy; HIGHLY-SYMMETRICAL COMPOUNDS; HALIDE BINARY MELTS; VIBRATIONAL-MODES; ELECTRONIC-STRUCTURE; MOLTEN; LANTHANIDE; SPECTRA; MIXTURES; ABSORPTION; ELPASOLITE;

D O I：

10.1002/zaac.201200480

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Raman spectra of rare earth (REE: rare earth elements) trichloride (REE = Y, La, Ce, Pr, Sm, Gd, Dy, or Yb) dissolved in alkali chloride eutectic melts (LiCl-KCl, LiCl-RbCl, and LiCl-CsCl) were measured at 793 K. The spectra showed polarized peaks centered around 240270 cm1, which were identified as the totally symmetric stretching vibration (1) of the octahedral REECl63. The 1 frequency increased with the polarizing power of the trivalent REE ions. The change in the 1 frequency was found to be larger for lighter lanthanides. This was attributable to the distortion of the Oh symmetry of REECl63.

引用

页码：765 / 769

页数：5

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