Calorimetric study of isomeric and steric effects amine-alcohol interactions

  • Shirish D Pradhan
  • Gopal Pathak
Physical and Theoretical


The enthalpy of complex formation between different isomers of butylamine and butylalcohol was determined at 30°C by obtaining the partial molar enthalpy of dissociation of 1∶1 complexes inn-hexane. In both seriesviz. normal amine with isomeric alcohols and normal alcohol with isomeric amines, the enthalpy of complex formation showed the same trend ast>n>iso>sec.

The trend in normal-normal, normal-tertiary, tertiary-tertiary and secondary-secondary omplexes was ast−n>n−n>t−t> sec-sec. Both these trends were explained in terms of steric and electromeric effects.


Calorimetry amine-alcohol interactions isomeric effect steric effect enthalpy of complexes 


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Copyright information

© Indian Academy of Sciences 1983

Authors and Affiliations

  • Shirish D Pradhan
    • 1
  • Gopal Pathak
    • 1
  1. 1.National Chemical LaboratoryPuneIndia

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