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العنوان
SYNTHESIS AND CHARACTERIZATION OF
NEW METAL COMPLEXES WITH SOME
SCHIFF BASES
المؤلف
El-Seidy,Ahmed Moamen Ahmed El-Sayed
هيئة الاعداد
باحث / Ahmed Moamen Ahmed El-Sayed El-Seidy
مشرف / Barsoum N. Barsoum
مشرف / Nabil S. Youssef
مشرف / Sergio Cenini
مشرف / Mohamed Mohamed Shokry
الموضوع
condensation reactions-
تاريخ النشر
2009
عدد الصفحات
306.p:
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
Inorganic Chemistry
تاريخ الإجازة
1/4/2009
مكان الإجازة
جامعة القاهرة - كلية العلوم - Inorganic Chemistry
الفهرس
Only 14 pages are availabe for public view

from 306

from 306

Abstract

This work has been carried out to investigate the catalytic activity of some
Schiff Base complexes in cyclopropanation of non-activated olefins. Ten new Schiff
base ligands were prepared (three diamines and seven thiosemicarbazones) and
Characterized by elemental analyses and spectral studies (IR, NMR, UV and mass
spectroscopy). One of the prepared diamine ligands was optically active. Moreover,
some transition metal complexes of these ligands were prepared by the reaction of
the transition metal ions with these new ligands, and characterized by elemental
analyses, spectrophotometric studies (IR, NMR, ESR and UV-Vis.), molar
conductivity and magnetic moment determinations beside ESR measurements to
enable the elucidation of the geometrical structure of the prepared metal complexes.
The results came with good agreement with the proposed structures. Some of the
prepared copper and cobalt complexes were investigated for their catalytic activity in
cyclopropanation of non-activated olefins and some of them showed an excellent
reactivity with a moderate to excellent selectivity. Five of the examined copper
complexes can be used as catalysts in industry.
Key words: Diamine, Schiff bases, thiosemicarbazide, metal Complexes,
Characterization, Catalytic activity, Chiral catalyst, cyclopropanation
reactions, homogeneous catalysis, condensation reactions.