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  • Chem Sci Trans., 2015, 4(1),  pp 95-100  

    DOI:10.7598/cst2015.949

    Research Article

    Variation in Electronic Spectral Parameters of Nd(III) and Er(III) with Respect to Ionic Strength of the Medium

  • SHUBHA MISHRA1, SNEHA WANKAR2, PREETI VISHWAKARMA2, S.K.GHOSH1 and S.N.LIMAYE2
  • 1School of Studies in Physics, Vikram University, Ujjain (M.P.), India
    2Department of Chemistry, Dr. H. S. Gour University, A Central University, Sagar (M.P.) 470003, India
  • Abstract

    The 4f shells are known to have core like structure and were considered as least perturbed by changes around metal ion surroundings, however, there are evidences that the 4f-shells partially involved direct ligand interaction. Keeping in view this observation a systematic studies on the electronic spectral and radiative properties of [Ln(III).L] where L = HEDTA, EDTA and CDTA, in mediums of increasing ionic strengths (μ = 1.0 to 2.5) of NaClO4 have been undertaken with a view to observe the effect of increased compactness of the medium on the electronic spectral parameters of Ln(III) ion. Variations in Oscillator strength, Judd-Ofelt parameter and radiative parameters have been examined as a function of ionic strength of medium, to explore their interdependence.

    Keywords

    Judd-Ofelt parameters, Transition probability, Branching ratio, Radiative life time

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