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Raman spectrum of strontianite (SrCO3)

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Summary

The Raman spectrum of strontianite (SrCO3) has been studied for the first time using the λ 2537 resonance radiation of mercury as the exciter. The observed spectrum has been compared with that of aragonite which is isomorphous with strontianite. Out of the 13 frequency shifts recorded, 5 have been attributed to the internal oscillations of the CO3 ion and the remaining 8 to the lattice oscillations. The splitting of the degenerate v4 vibration of the free CO3 ion in the crystal into 3 frequencies and also the observed relative intensity of the lines 150 cm.-1 and 184 cm.-1 arising from the angular oscillations of the CO3 ions about their principal axes of inertia, indicate a considerable distortion in the symmetry of the CO3 ion in strontianite as in the case of aragonite.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Science, Bangalore 3

    T. S. Krishnan

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  1. T. S. Krishnan
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Communicated by Prof. R. S. Krishnan, F.A.SC.

The author’s thanks are due to Prof. R. S. Krishnan for his kind interest and encouragement and to Dr. P. S. Narayanan for the valuable help given in the course of the work.

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Krishnan, T.S. Raman spectrum of strontianite (SrCO3). Proc. Indian Acad. Sci. 44, 96–98 (1956). https://doi.org/10.1007/BF03048807

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  • DOI: https://doi.org/10.1007/BF03048807

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