Thermodynamic, transport, and spectroscopic studies for mixtures of isomeric butanediol and N-methyl-2-pyrrolidinone

摘要: The thermodynamic parameters viz . excess molar volume V E and speed of sound u , transport parameter viscosity η spectroscopic IR, 1 H, 13 C NMR have been measured for the mixtures isomeric butanediol (1,2-, 1,3-, 1,4-, 2,3-butanediol) N -methyl-2-pyrrolidinone over whole composition range at 308.15 K. partial quantities Q i isentropic compressibility K S deviation Δ in Gibbs free energies activation viscous flow g ( x ), chemical shift δ estimated analyzed. Results show that interaction between unlike molecules takes place through hydroxyl groups CO group -methyl-2-pyrrolidinone. Excellent agreement measurements is observed.