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العنوان
Angular structure of the giant resonace in photonuclear /
المؤلف
Seleat, Mohamed Emam.
هيئة الاعداد
باحث / mohamed emam selet
مشرف / nabil mohamed al nagar
مناقش / hassan omar nafea
مناقش / nabil mohamed al nagar
الموضوع
physics radiation.
تاريخ النشر
1987.
عدد الصفحات
51 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الفيزياء النووية والطاقة العالية
تاريخ الإجازة
1/1/1987
مكان الإجازة
جامعة بنها - كلية العلوم - فيزياء نووية
الفهرس
Only 14 pages are availabe for public view

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Abstract

1- In the first chapter, a literature survey of the previous studies on Schiff
bases and their complexes with different metal ions is given. ~J’his
survey includes; potentiometric, spectrophotometric and studies on
Schiff bases and their solid complexes. It includes also the use of some
Schiff bases as analytical reagents for detection and determination oF
transition metal ions spectrophotometrically
2- The experimental part (chapter-TI) includes the preparation of the Schiff
bases under investigation. It comprises also information about the
instruments used for conductornetric potentiometric, spectrophotomet
nc, LR as well as ‘H NIVIR.
3- Chapter III includes the results and discussion and consists of two parts,
the first part (A), comprising the studies in solutions of complexes
formed between Schiff bases under investigation with transition metal
ions (Cr3~, Fe3~, Co2~, Ni2+, Cu2~ and Cd2+).
The studies include conductometric, potentiometric (at different
temperatures; 298, 308 and 318 K) and spectrophotometric techniques
from the conductometric measurements the stoichiometny of the
different complexes is obtained.
Potentiometric titrations of Schiff bases together with Cr3~,
Fe3~, Co2~, Ni2+, Cu2~ and Cd2+ ions are performed in a medium of
hydrochloric acid and potassium chloride. The proton-ligand formation
constants log KH are determined as well as the formation constants of
the complexes log KM. The stoichiometry and stability constants ofmetal complexes are also evaluated from the spectrophotometric
methods namely the molar ratio and continuous variation methods. The
optimum conditions for the complex formation are investigated
universal buffer of 30% (v/v) ethanol was found to be the best medium