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العنوان
Synthesis And Characterzation Of Some Schiff Base Complexes =
المؤلف
El husseiny, Amel Hassan Fawzy.
هيئة الاعداد
مشرف / ممدوح مسعود
مشرف / مهجة توفيق
باحث / امل حسن فوزى
مناقش / محمد على
الموضوع
Characterzation. Schiff Base. Complexes.
تاريخ النشر
1996.
عدد الصفحات
233 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الكيمياء
تاريخ الإجازة
1/1/1996
مكان الإجازة
جامعة الاسكندريه - كلية العلوم - Chemistry
الفهرس
Only 14 pages are availabe for public view

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Abstract

Thethesiscomprises three chapters. The first is concerned with the
raturesurveyof the chemistry of Schiff base compounds mainly
,mstructural,applied and coordination chemistry views.
Thesecondchapter is devoted to the experimental part. The
thesisof both the ligands and their transition metal complexes
described.The selected Schiff base ligands for the present
lesare those prepared from salicylaldehyde and three diamines
lylenediaminpe,ropylenediamine and o-phenylenediamine). The
yncal data of the ligands and their complexes are given. The
ifldngprocedure and the standardization of the instruments used
(lr,uv-visiblee,sr, magnetic susceptibility, electrical conductivity,
analysis,dielectric constant and pH measurements) and the
paratlonof the solutions are explained.
Thethirdchapter is concerned with the results and discussion and
dividedinto nine parts. The prepared complexes were found to
t in the stoichiometries 1:1 and 1:2 (M:L). While the reaction of
-bis(salicylidene)-o-phenylenediamine with cobalt(II) chloride
orded C04L2C1.4H20 where cobalt exists in different oxidation
tes,
Thefirstpart deals with the infrared spectra of the free organic
Impoundasnd their metal complexes assigning the position of the
ndamental groups, mainly -OH and C=N. The hydrogen bond was
rovedto exist. The M-N=C bond lengths are calculated. The
uencewasfound to be affected by the electrostatic field property
d thechainlength of the ligand. Such trend in case of the mixed
talcomplexesis attributed to geometry changes and flexibility
rtors,
Theelectronicabsorption spectral properties of the Co(ll), Ni(ll) ,
(I1),Pd(IIP),t(II),U02(II) and some of the mixed metal complexes
givenin the second part. All the cobalt and copper complexes
refoundto exhibit an octahedral configuration while, palladium
d platinumcomplexes exhibit a square planar stereochemistry.