• Infrared spectra of (NH4)2BeF4

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/087/01/0045-0048

    • Keywords

       

      Infrared spectrum; (NH4)2BeF4

    • Abstract

       

      The infrared spectra (4000-250 cm−1) of (NH4)2BeF4 powder have been recorded at ∼300K (paraelectric phase) and 120K (ferroelectric phase). Observed bands have been consistently attributed to different internal modes of NH4+ and BeF4−2 ions; a few bands also arise due to combination of these modes. The frequencies of librational modes of NH4+ and BeF4−2 ions have been estimated to be ∼370 and ∼100 cm−1, respectively, from combination modes.

    • Author Affiliations

       

      Y S Jain1

      1. Department of Physics, Aligarh Muslim University, Aligarh - 202 001
    • Dates

       
  • Journal of Chemical Sciences | News

© 2021-2022 Indian Academy of Sciences, Bengaluru.