Инвентарный номер: нет. F 96 Fukushima, K. Raman spectroscopic study of molten SmCl3-ACl systems (A=Li, Na, K) [Text] / K. Fukushima, H. Yamoto, Y. Iwadate // Journal of Alloys and Compounds. - 1999. - V. 290, N 1-2. - P114-118. - Bibliogr.: 17 ref. . - ISSN 0925-8388 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИМИЯ -- SmCl3-LiCl -- РАСПЛАВЫ ХЛОРИДНЫЕ -- ХЛОРИДНЫЕ РАСПЛАВЫ -- SmCl3-NaCl -- SmCl3-KCl -- SmCl3 -- LiCl -- NaCl -- KCl -- ХЛОРИД САМАРИЯ -- САМАРИЙ -- ХЛОРИД ЛИТИЯ -- ХЛОРИД НАТРИЯ -- ХЛОРИД КАЛИЯ -- ЛИТИЙ -- НАТРИЙ -- КАЛИЙ -- Sm -- Na -- K -- ХЛОРИДЫ РАСПЛАВЛЕННЫЕ -- РАСПЛАВЛЕННЫЕ ХЛОРИДЫ -- РАМАН-СПЕКТРОСКОПИЯ Аннотация: Raman spectra of molten SmCl3-ACl systems (A=Li,Na,K) were measured at different compositions and temperatures. The spectra showed polarized peaks centered at about 256 cm(-1) in the whole range of concentration and depolarized peaks at about 120 cm(-1) in the low concentration range of SmCl3. These Raman shifts were identified as the totally symmetric stretching vibration v1 and the degenerate bending vibration v5 of octahedral SmSl(3-)6 complex anion, respectively. Peak spliting of the isotropic component was recognized clearly in the reduced Raman spectra of mixtures. Clustering of complex anions is thought to occur in the melts. However, the clustering might be restrained when the SmCl3 concentration became relatively low by adding LiCl, NaCl or KCl. The v5 peak was the strongest at the SmCl3 concentration of 25 mol% in the SmCl3-KCl system among the three systems |