Document Details
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Document Type |
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Thesis |
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Document Title |
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Investigation of Photochemical Reaction of New Molybdenum Carbonyl Including Bidentate Ligands with Triphenyl Phosphine دراسة التفاعلات الكيموضوئيه للموليبدنيوم كربونيل والمحتوية متصلات ثنائية مع ثلاثي فينايل الفوسفين |
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Subject |
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Faculty of Science |
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Document Language |
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Arabic |
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Abstract |
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A series of Schiff base ligands (L1-L7) and corresponding complexes have been prepared. The general formula of the complex is [Mo(CO)4(L)]{L = N1,N2-dibenzylideneethane-1,2-diamine (L1), N1,N2-Dimesitylethane-1,2-diamine (L2), N1,N2-(ethane-1,2-diyl) bis (1-(4-methoxyphenyl) methanimine) (L3), N1,N2-bis(4-(dimethylamino) benzylidene) ethane-1, 2-diamine (L4), N1,N2-bis(4-methylbenzylidene) ethane-1,2-diamine (L5), N1,N2- (ethane-1,2-diyl) bis (1-(naphthalen-2-yl)methanimine) (L6) and 1,10-Phenothroline (L7)}. The ligands were characterized by FTIR, 1H NMR and 13C NMR spectroscopy. The FTIR spectra of Ethylene-Schiff Base showed intense bands for the azomethine bond (–CH=N–) and the absence of band in the aldehyde group range confirms the formation of ligands. In addition to this, the 1H NMR and 13C NMR spectra of confirms the presence of azomethine (–CH=N–) proton. In a similar way, metal complexes were characterized using FTIR, 1H NMR and 13C NMR spectra while crystal structures were obtained for complexes (2) confirms the formation of metal complexes . The UV-vis absorption spectra of the complexes were collected, showing that the MLCT band is red-shifted upon introducing the diamine ligands in place of CO. In addition to this, kinetic studies were performed on the photochemical substitution of carbonyl ligands in substituted molybdenum carbonyl complex with PPh3. For this both the solutions of [M(CO)4(L)] and PPh3 in toluene were taken into 10 mm quartz cuvette and irradiated with 395 nm UV light. ln[C] versus time graph were plotted. The slopes of the plots gave the rate constants, k. |
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Supervisor |
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Prof. Mutlaq Aljahdali |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1441 AH
2020 AD |
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Added Date |
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Monday, June 8, 2020 |
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Researchers
| عاقله سالم الزبيدي | ALzabidi, Aglah Salem | Researcher | Master | |
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