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    • Keywords


      Thermal emission; molecular spectra; vibrational analysis; spectra of inorganic diatomic molecule; transition elements

    • Abstract


      Thermal emission spectrum of MnSe molecule, excited in high temperature graphite furnace, has been photographed in the spectral region λλ4150–5800 Å at a reciprocal linear dispersion of 7.3 Å/mm. The study reveals the presence of two band systems viz.A–X andB–X in whichB–X is entirely new. While the systemA–X consists of 29 bands, the new systemB–X comprises of 24 single headed and red degraded bands. Vibrational analysis performed suggested that both the systems involve ground state6Σ with a vibrational frequencyωe=361.0 cm−1. Transition responsible for MnSe spectrum appears to be of the type6Σ–6Σ.

      An estimation of the ground state vibrational frequency for MnTe molecule gives rise to its value as 280 cm−1.

    • Author Affiliations


      K N Uttam1 R Gopal1 M M Joshi1

      1. Saha’s Spectroscopy Laboratory, Physics Department, University of Allahabad, Allahabad - 211 002, India
    • Dates

  • Pramana – Journal of Physics | News

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