Normal coordinate analysis of the Raman and infrared vibrations of the alpha phases of RE2O3 (RELa, Pr, Nd) and RE2O2S (RELa and Yb) Journal Articles uri icon

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abstract

  • AbstractA normal coordinate analysis of the spectra of the title compounds shows that they can be matched with a 6 force field. Metal‐O(S) force constants correlate approximately with bond length and range from 0.2 to 1.8 mdynes Å−1. OO(S) force constants are less than 0.1 mdynes Å−1 but for a satisfactory fit a metal‐metal force constant of 0.5 mdynes Å−1 must be introduced. The infrared spectrum of Pr2O3 is reported for the first time.

publication date

  • June 1982