物理化学学报 >> 2008, Vol. 24 >> Issue (01): 41-46.doi: 10.1016/S1872-1508(08)60004-2

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同分异构体对苯和丁醇的偶极相互作用的影响

ARUL G.; JAAFAR Mohamad Suhaimi; PALANIAPPAN L.   

  1. Department of Physics, Sri Venkateswara College of Engineering & Technology, Thiruvallur, Chennai, TN, India; School of Physics, Universiti Sains Malaysia, Pulau Penang 11800, Malaysia
  • 收稿日期:2007-09-05 修回日期:2007-10-12 发布日期:2008-01-05
  • 通讯作者: PALANIAPPAN L. E-mail:lp_dde_au@yahoo.com

Effect of Isomerismin the Dipolar Interaction of Benzene with Butanol

ARUL G.; JAAFAR Mohamad Suhaimi; PALANIAPPAN L.   

  1. Department of Physics, Sri Venkateswara College of Engineering & Technology, Thiruvallur, Chennai, TN, India; School of Physics, Universiti Sains Malaysia, Pulau Penang 11800, Malaysia
  • Received:2007-09-05 Revised:2007-10-12 Published:2008-01-05
  • Contact: PALANIAPPAN L. E-mail:lp_dde_au@yahoo.com

摘要: Sound velocity, density, and viscosity values were measured at 303Kin four binary systems of benzene + 1-, 2-, tert-, or iso-butanol. From these data, acoustical parameters, such as adiabatic compressibility, free length, free volume, and internal pressure were estimated using the standard relations. The results are interpreted in terms of molecular interaction between the components of the mixtures. Observed excess value in all the mixture indicates that the molecular symmetry existing in the system is highly disturbed by the nonpolar benzene molecules. Interaction energy terms of the statistical mixing are also verified for these binary systems and the dipole-dipole interactions are found to be predominantly present and are sharply affected by the isomeric forms of butanol.

关键词: Ultrasonic velocity, Acoustic parameter, Dipolar interaction, Interaction

Abstract: Sound velocity, density, and viscosity values were measured at 303Kin four binary systems of benzene + 1-, 2-, tert-, or iso-butanol. From these data, acoustical parameters, such as adiabatic compressibility, free length, free volume, and internal pressure were estimated using the standard relations. The results are interpreted in terms of molecular interaction between the components of the mixtures. Observed excess value in all the mixture indicates that the molecular symmetry existing in the system is highly disturbed by the nonpolar benzene molecules. Interaction energy terms of the statistical mixing are also verified for these binary systems and the dipole-dipole interactions are found to be predominantly present and are sharply affected by the isomeric forms of butanol.

Key words: Ultrasonic velocity, Acoustic parameter, Dipolar interaction, Interaction