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1995 Fiscal Year Final Research Report Summary

SOLVENT EFFECT ON THE RATE CONSTANT OF ROTETIONAL ISOMERISM IN SOLUTIONS

Research Project

Project/Area Number 06453020
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Physical chemistry
Research InstitutionNAGOYA UNIVERSITY

Principal Investigator

NOMURA Hiroyasu  NAGOYA UNIVERSITY,SCHOOL OF ENGINEERING,PROFESSOR, 工学部, 教授 (50023081)

Co-Investigator(Kenkyū-buntansha) KODA Shinobu  NAGOYA UNIVERSITY,SCHOOL OF ENGINEERING,ASSOCIATE PROFESSOR, 工学部, 助教授 (10126857)
Project Period (FY) 1994 – 1995
KeywordsULTRASONIC RELAXATION / ROTATIONAL ISOMERISM / RATE CONSTANT / VISCOSITY DEPENDENCE / KRAMERS THEORY / SOLVENT EFFECT
Research Abstract

THE PURPOSE OF THIS WORK IS TO ELUCIDATE THE RATE CONSTANT OF ROTATIONAL ISOMERISM IN SOLUTIONS BY ULTRASONIC AND RAMAN SPECTROSCOPIC METHODS.
THE ULTRASONIC RELAXATION SPECTRA OF SEC-BUTYLBROMID IN N-HEXANE AND DIISOBUTYLPHTHALATE WERE MEASURED IN THE FREQUENCY RANGE FROM 5 MHZ TO 800MHZ.THE VISCOSITY DEPENDENCE OF THE RELAXATION FREQUENCY OF THE RATE CONSTANT WERE OBSERVED.THE CHANGES IN THE ENTHALPY (DELTAH) AND VOLUME (DELTAV) ACCOMPANYING THE ROTATIONAL ISOMERISM WERE ESTIMATED FROM THE TEMPERATURE AND PRESSURE DEPENDENCE OF THE RAMAN SPECTRA CORRESPONDING THE ROTATIONAL ISOMERS.THE VALUES OF DELTAH AND DELTA1V DECREASED WITH INCREASING THE VISCOSITY IN SOLUTIONS.ON THE OTHER HANDS,THE ACTIVATION ENTHALPY,WHICH IS ESTIMATED FROM THE TEMPERATURE DEPENDENCE OF THE ULTRASONIC FREQUENCY ARE AROUND 18 KJ/MOL.THE VISCOSITY DEPENDENCE OF THE RATE CONSTANT OF SEC-BUTYLBROMID IS NOT INTERPRETED IN TERMS OF THE KRAMERS THEORY.THE DEVIATION FROM THE THEORY WAS RECOGNIZED IN THE HIGH VISCOSITY REGION.THE RESULTS OBTAINED FROM THE ULTRASONIC AND RAMAN SPECTROSCOPY INDICATED THAT THE POTENTIAL CURVES OF THE ROTATIONAL ISOMERISM IS MODIFIED BY THE CHANGE IN THE VISCOSITY IN SOLUTION.THAT IS THE INTERACTION BETWEEN SOLUTE AND SOLVENTS.IT IS DESIRABLE TO DEVELOP THE NEW THEORY OF THE RATE CONSTANT,WHICH PREDICTS THE VISCOSITY DEPENDENCE.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Shinobu.Koda: "Investigation on the Viscosity Dependence of the Rate Constant of Rotational Isomerism of Dibromoethane and Dibromopropane in Solutions" J.Chem.Soc.Faraday Transactions. 91. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiroyasu.Nomura: "Dynamics of the Sulfate Ion in Dilute Water-DMF Solutions" Z.Naturforsch. 50a. 7-10 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tatsuro,Matsuoka: "Velocity Measurement Using Optical Beam Deflection" Jpn.J.Appl.Phys.34. 2778-2780 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masaharu.Ohba: "Pressure Dependence of the Limiting Partial Molar Volume of Solute in the Lennard-Jones Systems as Investigated by the RISM Method" J.Phys.Chem. 99. 9258-9262 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masaharu.Ohba: "Statistical Mechanical Theory of the Partial and Other Derivatives of Thermodynamic Quantities of Liquid Mixtures" J.Phys.Chem. 99. 12356-12362 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tatsuro.Matsuoka: "Effect of Addition of Suefactant on the Miccelle-Monomoer Exchange Process" J.Mol.Liquids. 66. 337-340 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 野村浩康: "溶液の分子論的描像" 学会出版センター, 6 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] SHINOBU KODA,AKIO IWASAWA AND HIROYASU NOMURA: "Ultrasonic Investigation on the Viscosity Dependence of the Rate Constant of Rotational Isomerism of Dibromoethane and Dibromopropane in Solutions" J.Chem.Soc., Faradar Trans.91(3). 445-449 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] HIROYASU NOMURA,SHINOBU KODA AND TAKASHI SAKURAI: "Dynamics of the Sulfate Ion in Dilute Water-DMF Solutions" Z.Naturforsch. 50a. 7-10 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] TATSURO MATSUOKA,AKIO KUMATA,SHINOBU KODA AND HIROYASU NOMURA: "Ultrasonic Velocity Measurement Using Optical Beam Deflection" Jpn.J.Appl.Phys.34(5B). 2778-2780 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] MASAHARU OHBA AND HIROYASU NOMURA: "Statistical Mechanical Theory of the Partial and Other Derivatives of Thermodynamic Quantities of Liquid Mixture." J.Phys.Chem.99(31). 12355-12362 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] MASAHARU OHBA,YASUJI,AMAKASU FUMIO KAWAIZUMI AND HIROYASU: "Pressure Dependence of the Limiting Partial Molar Volume of Solute in the Lennard-Jones Systems as Investigated by the RISM Method" J.Phys.Chem.99(22). 9258-9262 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] MASAHARU OHBA,AND HIROYASU: "Statistical Mechanical Theory of the Partial and Otheer Derivatives of Thermodynamic Quantities of Liquid Mixtures. Pressure Dependence of the Limiting Partial Molar Volume od Solute in the Lennard-Jones Systems as Investigated by the RISM Method" J.Phys.Chem.99(32). 12356-12362 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] TATSURO MATSUOKA,AKIO KUMATA,SHINOBU KODA AND HIROYASU NOMURA: "Ultrasonic Velocity Measurement Using Optical Beam Deflection" J.Mol.Liquids. 65/66. 337-340 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] FUMIO KAWAIZUMI,YASUHARU AMAKASU,MASAHARU OHBA AND HIROYASU NOMURA: "Evalution of Thermodynamic Quantities of Fluid Mixtures by the PY Equation" J.Mol.Liquids. 65/66. 370-380 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] KEIJI YASUDA,TATSURO MATSUOKA,SHINOBU KODA AND HIROYASU MONURA: "FREQUENCY DEPENDENCE OF ULTRASONICALLY INDUCED BIRERINGENCE OF RODLIKE PARTICLES" J.Phys.Chem.inpress. (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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