IR-Spektren der Caesium-bis-sulfato-metallate(III) |
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Authors: | Nata?a Bukovec Peter Bukovec Jo?e ?iftar |
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Institution: | (1) Laboratorium für anorganische Chemie, Universität Edvard Kardelj, 61001 Ljubljana, Jugoslawien |
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Abstract: | Compounds of the type CsLn(SO4)2, (Ln=La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) were prepared at 300°C. IR spectra were recorded in the range 4,000-250cm–1 and tentatively assigned. The number of observed bands exceeds the predicted number by site symmetry selection rules. Streching bands show bathochromic shifts whereas the deformations exibit hypsochromic shifts on going to heavier lanthanides. At the same time there is an increased splitting of these bands in the same direction. All these facts indicate an increased coupling in the layer structure which is in accordance with the lanthanide contraction.
N. Bukovec, P. Bukovec undJ. iftar, Vest. Slov. Kem. Drus.26, 103 (1979). |
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Keywords: | Lanthanides IR Spectra |
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