الفهرس 
GENERAL INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The reaction of M(CO)6 (M = Mo or W) with 4-nitro-N-(pyridine-2-yl-methylene)aniline (NPMA) Schiff base in absence and presence of a secondary ligand; triphenylphosphine (TPP), thiourea (Tu) or pyridine (Py) in THF were studied. The thermal reaction of NPMA with Mo(CO)6 in absence and presence of a secondary ligand gave the four complexes Mo(CO)4(NPMA), Mo(CO)3(NPMA)(TPP), Mo2(O)2(CO)2(NPMA)2(Py)2 and Mo2(O)2(CO)4 (NPMA)(Tu)2. Also, the thermal reaction of W(CO)6 with NPMA in THF resulted in the formation of the complex W2(O)6(NPMA) while under sunlight irradiation the reaction of W(CO)6 with NPMA in absence and presence of pyridine gave the two complexes W2(CO)6(NPMA)2 and W2(O)6(NPMA)(Py)2, respectively.
In addition, the thermal reaction of M(CO)6 (M = Cr or Mo) and 4,5-dimethyl-N,N-bis(pyridine-2-yl-methylene)benzene-1,2-diamine (DMPA) in THF in absence and presence of a secondary ligand; 2-aminobenzimidazole, 2-(2’-pyridyl)benzimidazole or thiourea were studied. The reaction of Cr(CO)6 gave the four complexes Cr2(CO)(DMPA)2, Cr(DMPA)2(Abz)2, Cr(DMPA)2(Pybz) and Cr2(CO)4(DMPA)2(Tu)2, respectively, while the thermal reaction of Mo(CO)6 resulted in the formation of the four complexes Mo2(O)6(DMPA)2, Mo2(O)2(CO)5(DMPA)(Abz), Mo2(CO)4(DMPA)(Pybz)2, and Mo2(O)2(CO)3(DMPA)2(Tu), respectively.
All complexes were characterized by elemental analysis and spectroscopic tools such as infrared, 1H NMR and mass spectroscopy. Thermal properties, electrochemical studies and biological activity of some complexes were investigated as representatives.