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Raman Spectroscopic Study of Rare Earth Chlorides in Alkali Chloride Eutectic Melts
Author(s) -
Uda Takeshi,
Fujii Toshiyuki,
Iwadate Yasuhiko,
Uehara Akihiro,
Yamana Hajimu
Publication year - 2013
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201200480
Subject(s) - eutectic system , raman spectroscopy , alkali metal , lanthanide , octahedral symmetry , chloride , rare earth , alkaline earth metal , chemistry , octahedron , ion , inorganic chemistry , analytical chemistry (journal) , crystallography , mineralogy , microstructure , physics , chromatography , organic chemistry , optics
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 240–270 cm –1 , which were identified as the totally symmetric stretching vibration (ν 1 ) of the octahedral REECl 6 3– . The ν 1 frequency increased with the polarizing power of the trivalent REE ions. The change in the ν 1 frequency was found to be larger for lighter lanthanides. This was attributable to the distortion of the O h symmetry of REECl 6 3– .
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