naglaa_abdallah

Naglaa Youssef Abdallah

مدرس - Lecturer

كلية العلوم

العنوان: جامعه سوهاج - كليه العلوم- قسم النبات والميكروبيولوجى

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إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Reactivity Trend


2018-09-16 14:52:55 الكلمات المفتاحية Order Rate Constant, base hydrolysis, Pyrone Ring, Organic Cosolvent, Reactivity Trend,
Reactivity trends in the base hydrolysis of 6-nitro-2H-chromen-2-one and 6-nitro-2H-chromen-2-one-3-carboxylic acid  at different temperatures
Kinetics of the base hydrolysis of 6-nitro-2H-chromen-2-one (NC) and 6-nitro-2H-chromen-2-one-3-carboxylic acid (NCC) in water-methanol and water-acetone mixtures was studied at temperature range from 283 to 313 K. The activation parameters of the reactions were evaluated and discussed. The change in the activation barrier of the investigated compounds from water to water-methanol and water-acetone mixtures were estimated from the kinetic data. ... إقراء المزيد

2018-09-16 14:12:49 الكلمات المفتاحية chromen-2-one, DMAC, base hydrolysis, DEAC, Reactivity Trend,
Kinetic study and reactivity trends of hydroxide ion attack on some chromen-2-one laser dyes in binary water-methanol and water-acetone mixtures
The kinetics of base-catalyzed hydrolysis of 7-dimethylamino-4-methyl-2_H_-chromen-2-one (DMAC) and 7-diethylamino-4-methyl-2_H_-chromen-2-one (DEAC) in binary water-methanol and water-acetone mixtures were studied in the temperature range from 288 to 313 K. The activation and thermodynamic parameters of these reactions were evaluated and discussed. The change in the activation energy in going from water to aqueous methanol and aqueous acetone was estimated from the ... إقراء المزيد

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