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Vibrational study of TlH2AsO4, TlH2-PO4 and their deuterated analogues

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Abstract

The Raman and infrared spectra of polycrystalline samples TlH2AsO4, TlD2AsO4, TlH2PO4 and TlD2PO4 have been investigated at 300 K in the frequency ranges 0 to 4000 and 200 to 4000cm−1 respectively. The assignment of lattice, internal, and OH group vibrations has been approximated in terms of symmetry species. Although all the vibrations follow more or less the space group symmetry, the internal vibrations do not completely fulfill the requirements of the symmetry rule. The isotope effect was observed prominently on both compounds in Raman and infrared spectra. An attempt has been made to assign and explain the results.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Technology, 721 302, Kharagpur, India

    T. V. Narasaiah, R. N. P. Choudhary & A. K. Pradhan

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  1. T. V. Narasaiah
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  2. R. N. P. Choudhary
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  3. A. K. Pradhan
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Narasaiah, T.V., Choudhary, R.N.P. & Pradhan, A.K. Vibrational study of TlH2AsO4, TlH2-PO4 and their deuterated analogues. J Mater Sci 22, 3571–3575 (1987). https://doi.org/10.1007/BF01161461

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  • DOI: https://doi.org/10.1007/BF01161461

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