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      https://www.ias.ac.in/article/fulltext/jcsc/114/01/0075-0082

    • Keywords

       

      α-1,4 isomer; α-1,2 isomer; heteropoly blues

    • Abstract

       

      Heteropoly blues of α-1,2 and α-1,4 isomers of [PV2W10O40]5−have been prepared by using the electrochemical technique. EPR spectra, measured as a function of temperature over a wide range (20-300 K), are explicable in terms of electron-hopping processes in heteropoly blues. Temperature dependence of A∥of the isomers suggest that the activation energy for electron hopping is greater for the α-1,4 isomer than the α-1,2 isomer. Other parameters like stability of the blues and intra-molecular electron transfer rate constants are also evaluated using EPR as the tool.

    • Author Affiliations

       

      C M Varghese1 A Shunmugasundaram2 R Murugesan3 T Jey Abalan1

      1. Department of Chemistry, Sacred Heart College, Tirupattur - 635 601, India
      2. Department of Chemistry, VHNSN College, Virudhunagar - 626 001, India
      3. School of Chemistry, Madurai Kamaraj University, Madurai - 625 021, India

    • Dates

       
      Published
      February 2002
      Manuscript received
      29 January 2001
      Manuscript revised
      9 July 2001

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