Preparation and Characterization of Some Novel Diphenylphosphine Hydrazones and Semicarbazones and Their Metal Complex Derivatives |
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| Authors: | A M A Alaghaz R A A Ammar |
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| Institution: | 1. Chemistry Department, Faculty of Science , Al-Azhar University (Boys) , Nasr-City , Cairo , Egypt;2. Chemistry Department, Faculty of Science , Al-Azhar University (Girls) , Nasr-City , Cairo , Egypt |
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| Abstract: | Interaction of hydrazones and semicarbazones derivatives I a ? t with diphenylchlorophosphine II , gave new compounds III a?t , and their complexation ability towards various divalent metal acetates Mn(OAc)2. 4H2O, Co(OAc)2. 4H2O, Ni(OAc)2. 4H2O, and Cu(OAc)2. H2O, in organic solvents are described. The metal/ phosphorsemi-carbazones ratios are measured and the results discussed. All these complexes are insoluble in organic solvents and in water. The structures of the isolated products were proposed on the basis of microanalyical data, TGA, IR, (UV/ VIS), (MS), and 1H, 13C, and 31P-NMR spectroscopic analyses and magnetic susceptibility. The proposed structure of the complexes is based on a 1: 2 metal: ligand ratio. All of the complexes are found to have an octahedral geometry, with the exception of the square planar copper (II) complexes. The corrosion inhibition of aluminium and copper in 1 M HCl and chromium–nickel steel in crude oil using IIIn have been studied by weight loss method. |
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| Keywords: | Diphenylphosphate magnetic susceptibility phosphorsemicarbazones 31P-NMR (IR) |
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