National Academy Science Letters

, Volume 41, Issue 4, pp 255–258 | Cite as

Electron Paramagnetic Resonance Studies of Vanadyl Doped K1.98 (NH4)0.02(C2O4)2.H2O System

  • Navin Pant
  • A. L. Verma
  • S. D. Pandey
  • Ram KripalEmail author
Short Communication


The vanadyl doped K1.98 (NH4)0.02(C2O4)2.H2O system is studied at room temperature using Electron Paramagnetic Resonance (EPR) technique. Two distinct interstitial sites for vanadyl ion are found in the potassium oxalate monohydrate crystal grown with 1% ammonium oxalate monohydrate salt. This is confirmed from angular variation of EPR spectra with static magnetic field H in the ac crystal plane. The ammonium ions seem to act as catalyst for vanadyl ions to occupy otherwise more difficult two interstitial sites in the mixed system. The formation of VO [(C2O4)4.H2O] complex is envisaged in our system and relevant ‘g’ and ‘A’ parameters are obtained through EPR studies.


EPR Potassium oxalate monohydrate Vanadyl ion Mixed oxalate system 



The authors are thankful to Dr. R P Pant of NPL, New Delhi for his help in EPR work.


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Copyright information

© The National Academy of Sciences, India 2018

Authors and Affiliations

  • Navin Pant
    • 1
  • A. L. Verma
    • 1
  • S. D. Pandey
    • 2
  • Ram Kripal
    • 3
    Email author
  1. 1.Department of Applied Physics, Amity Institute of Applied SciencesAmity UniversityNoidaIndia
  2. 2.P.P.N. College P.G. CenterKanpur UniversityKanpurIndia
  3. 3.Department of PhysicsUniversity of AllahabadAllahabadIndia

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