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Document Details
Document Type
:
Thesis
Document Title
:
A theoretical calculation of the hindering internal rotation of the methyl group in solid
حساب نظري لحاجز الجهد الميعيق للحركة الدورانية لداخلية لمجموعة الميثيل في الجوامد
Subject
:
Physics
Document Language
:
Arabic
Abstract
:
The reorientation of a methyl group about its axis in the solid state is hindering by a potential barrier. The magnitude and shape of this hindering barrier ref1ects the molecular and electronic structure of methyl group environment. The motional spectrum of the methyl group at low temperature is dominated by Quantum mechanical tunnelling through the barrier at a rate that is determined by the splitting of the ground torsional state, while at high temperature it is dominated by hopping motion characterised by the reorientation rate. We calculated the hindering potential of the rotation of the two methyl groups in Acetylacetone in the basis of pair potentials. The shape, the magnitude and the origin of the barrier are presented
Supervisor
:
Dr. Ali Mohammed Alsanoosi
Thesis Type
:
Master Thesis
Publishing Year
:
1422 AH
2001 AD
Added Date
:
Wednesday, June 11, 2008
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
خالد سعيد الصاعدي
Al-Saedi, Khalid Saeed
Researcher
Master
Files
File Name
Type
Description
23856.pdf
pdf
المستخلص
23857.pdf
pdf
Abstract
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