• P Narayana Murty

      Articles written in Pramana – Journal of Physics

    • Electron paramagnetic resonance of NH3+ radical in potassium sulphate

      S Subramanian P Narayana Murty C R K Murty

      More Details Abstract Fulltext PDF

      Room temperature EPR spectra of (NH4)2SO4 doped K2SO4 monocrystals irradiated with x-rays show the presence of NH3+ radicals. The EPR parameters areg ‖=2.0037 andg ⊥ = 2.0068;14NAXX=13.75;AYY=24.5;AZZ=25.5 gauss;1HAXX=AYY=22 andAZZ=25 gauss. From the14N and1H coupling constants it has been inferred that at room temperature the planar NH3+ radical undergoes rotation about theC3 axis which corroborates with the equivalence of the protons, but the radical itself is in an asymmetric crystal field environment. The 77K spectra indicate a considerable reduction in the motion of the radical with the free motion almost completely stopped.

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.