Publication Date:
2013-03-06
Description:
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– .
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
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