Academic Journal
Kinetics and mechanism of alkaline hydrolysis of 4‐nitrophthalimide in the absence and presence of cationic micelles
| العنوان: | Kinetics and mechanism of alkaline hydrolysis of 4‐nitrophthalimide in the absence and presence of cationic micelles |
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| المؤلفون: | Niyaz Khan, M., Abdullah, Zunoliza |
| المصدر: | International Journal of Chemical Kinetics ; volume 33, issue 7, page 407-414 ; ISSN 0538-8066 1097-4601 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2001 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Pseudo‐first‐order rate constants ( k obs ) for alkaline hydrolysis of 4‐nitrophthalimide (NPTH) decreased by nearly 8‐ and 6‐fold with the increase in the total concentration of cetyltrimethyl‐ammonium bromide ([CTABr] T ) from 0 to 0.02 M at 0.01 and 0.05 M NaOH, respectively. These observations are explained in terms of the pseudophase model and pseudophase ion‐exchange model of micelle. The increase in the contents of CH 3 CN from 1 to 70% v/v and CH 3 OH from 0 to 80% v/v in mixed aqueous solvents decreases k obs by nearly 12‐ and 11‐fold, respectively. The values of k obs increase by nearly 27% with the increase in the ionic strength from 0.03 to 3.0 M. The mechanism of alkaline hydrolysis of NPTH involves the reactions between HO − and nonionized NPTH as well as between HO − and ionized NPTH. The micellar inhibition of the rate of alkaline hydrolysis of NPTH is attributed to medium polarity effect. © 2001 John Wiley & Sons, Inc. Int J Chem Kinet 33: 407–414, 2001 |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/kin.1036 |
| الاتاحة: | http://dx.doi.org/10.1002/kin.1036 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fkin.1036 https://onlinelibrary.wiley.com/doi/pdf/10.1002/kin.1036 |
| Rights: | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| رقم الانضمام: | edsbas.C626EC52 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/kin.1036 |
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