• ViscosityB-coefficients of sodium salts of some orthosubstituted benzoic acids in relation to hydrogen bonding and electronegativity

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      https://www.ias.ac.in/article/fulltext/jcsc/104/03/0409-0416

    • Keywords

       

      ViscosityB-coefficients; ortho-substituted sodium benzoates; solute-solvent interactions; hydrogen-bonding; electronegativity

    • Abstract

       

      ViscosityB-coefficients of sodium salts of salicylic, thiosalicylic, anthranilic, 2,6-dihydroxy benzoic and ito-anisic acids have been measured at 298, 303 and 308 K respectively. Temperature dependence ofB-values suggest that the salts as well as their anions excepto-anisate behave as structure breakers. This is further supported by energy of activation data. The observedB-coefficients suggest probable involvement of simultaneous intra- and intermolecular hydrogen bonding between an ortho-substituent and the carboxylate group on the one hand and between the ortho-substituent and solvent water on the other. A good correlation betweenB-coefficients and the electronegativities of oxygen, nitrogen and sulphur atoms has been noted. The probable involvement of ringπ-electrons in depolymerising the water structure has been conjectured.

    • Author Affiliations

       

      Dipak K Chatterjee1 Bejoy K Seal1

      1. Department of Chemistry, Burdwan University, Burdwan - 713104, India
    • Dates

       
  • Journal of Chemical Sciences | News

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