aida

Prof. Dr. Aida Mohey Elden Awad

استاذ -

كلية العلوم

العنوان: قسم الكيمياء - كلية العلوم - جامعة سوهاج

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أضيف حديثا
  • المقررات الدراسية 1
  • ملحقات المقررات الدراسية 1
  • واجبات المقررات الدراسية 0
  • المنشورات و المؤلفات 1
  • ساعات مكتبية 1
  • الاعلانات 1
  • عدد الملفات المرفوعه 2
  • كل التنزيلات 0

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Initial state

Initial State and Transition State Contributions to Reactivity Trends of Base-Catalyzed Hydrolysis of Some Nitro Chromen-2-One Derivatives

2018-09-16 15:02:56 الكلمات المفتاحية Initial state, Transfer chemical potential, Activation energy barrier, Base-catalyzed hydrolysis, Chromene-2-Ones,
Initial State and Transition State Contributions to Reactivity Trends of Base-Catalyzed Hydrolysis of Some Nitro Chromen-2-One Derivatives
Base-catalyzed hydrolysis of 6-nitro-2H-chromen-2-one (NC) and 6-nitro-2H-chromen-2-one-3-carboxylic acid (NCC) in binary water/methanol and water/acetone mixtures were studied kinetically at 298 K. The changes in the activation barrier of the investigated compounds from water to water/methanol and water/acetone mixtures were estimated from the kinetic data. Solvent effects on the reactivity trends were analyzed into initial state and transition state components. These ... إقراء المزيد

Kinetics, reactivity, initial-transition state analysis and thermodynamic parameters of base-catalyzed hydrolysis of coumalic acid in solvents with different polarities

2018-09-11 12:45:20 الكلمات المفتاحية Isokinetic temperature, Transition state, Initial state, Transfer chemical potential, Activation energy barrier, Base-catalyzed hydrolysis, Coumalic acid, Kinetics, aqueous-methanol, aqueous-acetone,
Kinetics, reactivity, initial-transition state analysis and thermodynamic parameters of base-catalyzed hydrolysis of coumalic acid in solvents with different polarities
Base-catalyzed hydrolysis of coumalic acid (COU) in binary aqueous-methanol and aqueous-acetone mixtures has been studied kinetically at a temperature range from 283 to 313 K. Moreover, the change in the activation energy barrier of COU from water to water–methanol and water–acetone mixtures is estimated from the kinetic data. Solvent effects on reactivity trends have been analyzed into initial and transition ... إقراء المزيد

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