khalaf.ali

Khalaf Ali Fayez Abuamra

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم النبات والميكروبيولوجى -كلية العلوم -جامعة سوهاج

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أضيف حديثا
  • المقررات الدراسية 1
  • ملحقات المقررات الدراسية 0
  • واجبات المقررات الدراسية 0
  • المنشورات و المؤلفات 12
  • ساعات مكتبية 0
  • الاعلانات 0
  • عدد الملفات المرفوعه 0
  • كل التنزيلات 0

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Initial state-transition state

Hydrophobicity and kinetic inspection of hydroxide ion attack on some chromen-2-one laser dyes in binary aqueous–methanol and aqueous–acetone mixtures: Initial state-transition state analysis

2018-11-28 20:00:34 الكلمات المفتاحية aqueous–acetone mixtures, aqueous–methanol, Initial state-transition state,
Hydrophobicity and kinetic inspection of hydroxide ion attack on some chromen-2-one laser dyes in binary aqueous–methanol and aqueous–acetone mixtures: Initial state-transition state analysis
In the present study, reactivity base-catalyzed hydrolysis of 7-dimethylamino-4-methyl- 2H-chromen-2-one (DMAC) and 7-diethylamino-4-methyl-2H-chromen-2-one (DEAC) in binary aqueous–methanol and aqueous–acetone mixtures was examined at 298 K. Kinetic results, rate laws and reaction mechanisms were established. Moreover, the change in the activation energy barrier of the investigated compounds from water to water–methanol and water–acetone mixtures was estimated from the kinetic data. Base-catalyzed ... إقراء المزيد

Reactivity trends of hydroxide ion attack on high spin Fe(II) complexes in some mixed aqueous solvents: Gibb’s Free Energy of Transfer and initial-transition state analysi

2018-09-06 08:23:13 الكلمات المفتاحية Initial state-transition state, Gibb’s Free Energy of Transfer, Chelate, Solvolysis, Kinetics, base hydrolysis,
Reactivity trends of hydroxide ion attack on high spin Fe(II) complexes in some mixed aqueous solvents: Gibb’s Free Energy of Transfer and initial-transition state analysi
The kinetics of hydroxide ion attack on bis(bromosalicylidene alanate)iron (II) (bsali), bis(bromosalicylidene phenylalanate)iron(II) (bsphali), bis(bromosalicylidene aspartate)iron(II) (bsasi), (bromosalicylidene histidinate)iron(II) (bshi), bis(bromosalicylidene arginate)iron(II) (bsari) have been reported in different binary aqueous solvent mixtures at 298 K. The observed reactivity trends are discussed in terms of the hydrophilic and hydrophobic forms of the complexes investigated, as well as the transfer chemical potentials ... إقراء المزيد

Hydrophobicity, reactivity trends of base catalyzed hydrolysis of some novel high spin Fe(II) chelates in some binary aqueous solvent mixtures: Initial-transition state analysis

2018-09-11 12:55:55 الكلمات المفتاحية Solvent, Hydrophobic, Hydrophilic, Kinetics, Hydration, Solvolysis, Reactivity, Initial state-transition state,
Hydrophobicity, reactivity trends of base catalyzed hydrolysis of some novel high spin Fe(II) chelates in some binary aqueous solvent mixtures: Initial-transition state analysis
Rate constants for the base hydrolysis of bis(naphthylidene alanate)iron (II) (nali), bis(naphthylidene phenylalanate)iron(II) (nphali), bis(naphthylidene aspartate)iron(II) (nasi), (naphthylidene histidinate)iron(II) (nhi), bis(naphthylidene arginate)iron(II) (nari) have been reported in different binary aqueous solvent mixtures at 298 K. The observed reactivity trends are discussed in terms of the hydrophilic and hydrophobic forms of the complexes investigated, as well as the transfer chemical potentials ... إقراء المزيد

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