Effect of substituents on the carbonyl carbon of formamide tautomerism

العناوين الأخرى

تأثير المعوضات على الفورمامايد و حمض الفورمامايد

مقدم أطروحة جامعية

al-Musaadyn, Ashraf Mansur

مشرف أطروحة جامعية

Khalil, Salim Muhammad

أعضاء اللجنة

Ayyub, Miqdad Tawfiq
al-Alali, Abd Allah Muhammad
Qutaytat, Muhammad Ibrahim

الجامعة

جامعة مؤتة

الكلية

كلية العلوم

القسم الأكاديمي

قسم الكيمياء

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2006

الملخص الإنجليزي

MINDO-Forces method was used to calculate the optimized geometries, heats of formation, electron densities, entropies and dipole moments of formamide and form amidic acid.

It was found that formamide is more stable than formamide acid by 10.842 kcal / mol that were in agreement with the previous theoretical calculations.

The effect of substituents (OH, CN, N02, NH2, CH3, CF3, CHO) on the carbonyl carbon of formamide and form amidic acid were studied in order to investigate the relative stability of the tautomer's.

The geometrical parameters (bond lengths and bond angles) and dipole moments were found to be affected by the substituents especially at the position, where a substituent is attached. The stabilizing effect of the substituents on formamide and form amidic acid system were determined by Gibbs free energy and isoseismic reactions.

Result are compared with the previous work on the nitrogen of formamide and form amidic acid.

التخصصات الرئيسية

الكيمياء

الموضوعات

• الكربون

عدد الصفحات

46

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-310415