الفهرس 
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Abstract
The present thesis entitled ¨Transition metal complexes
of isatin-3-oxime¨ comprises three chapters.
Chapter one:-
This chapter concerned with concepts, preparation,
modes of bonding, importance and metal complexes of
oximes. It also includes the literature survey on the
preparation of isatin-3-oxime ligand and its transition metal
complexes.
Chapter two:-
This chapter is related to the experimental part, the list of
chemicals and different standardized instruments (such as UVVis,
1HNMR, IR, magnetic Gouy balance, pH, TGA and
conductivity) that are used in synthesis, characterization and
investigation of the ligand and its complexes. Di-μ-oxo
bimolybdenum complex of general formula Mo2O4-
(H2ISMO)2(THF)2 ( THF= tetrahydrofuran) was synthesized in
two steps starting with the reaction of Mo(CO)6 with 2,2’-
bipyridine then followed by the addition of isatin-3-oxime
ligand. Moreover, dichromuim oxo complex of general formula Cr2O4(H2ISMO)2 was prepared in high yield by the reaction of
chromium hexa carbonyl with H2ISMO in sun light.
Chapter three:-
The results and discussion are given in this chapter.
Initial characterization based on the elemental and mass
analysis has suggested that the proposed structures are
Mo2O4(H2ISMO)2(THF)2 and Cr2O4(H2ISMO)2. The infrared
studies were useful in assigning the coordination mode of the
isatin-3-oxime ligand to the molybdenum metal centers in the
complex. The electronic absorption spectrum revealed two
bands assignable to the intraligand π-π* and oxygen-to
molybdenum charge transfer transitions. The
thermogravimetric analysis gave more insight into the
composition and the thermal stability of the complex. The
magnetic susceptibility measurements for the dimolybdenum
complex can fit with the proposed dimeric structure
containing two Mo(IV) centers and bonded through the two
Mo-O-Mo bridge.
Also, the infrared studies were useful in assigning the
coordination mode of the isatin-3-oxime ligand to the
chromium metal. The electronic absorption spectrum
revealed two bands attributed to π-π* and chromium(IV).