Keywords

In this work lactone, 1 was prepared from the reaction of p-nitro phenyl hydrazine with ethylacetoacetate, which upon treatment with benzoyl chloride afforded the lactame, 2. The reaction of, 2 with 2-amino phenol produced a new Schiff base, L in good yield. Complexes of V, IV, Zr, IV, Rh, III, Pd, II, Cd, II and Hg, II with the new Schiff base, L have been prepared. The compounds, 1, 2 were characterized by FT-IR and UV spectroscopy, as well as characterizing ligand, L by the same techniques with elemental analysis, C.H.N and, 1H-NMR. The prepared complexes were identified and their structural geometries were suggested by using elemental analysis, C.H.N, flame atomic absorption technique, FT-IR and UV-Vis spectroscopy, in addition to magnetic susceptibility and conductivity measurements. Metal to ligand [M:L] ratio was obtained for all complexes in ethanol using molar ratio method, which gave comparable results with those obtained for the solid complexes. As well as the apparent stability constant of the complexes have been studied with the time and their color were stable for more than 4 hrs., furthermore the molar absorptivity have been calculated.

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Keywords

A New Mannich base [N-, 4-morpholinomethyl-1, 8-naphthalimide], L, was synthesized and characterized by C.H.N analysis, FTIR, UV-Vis and 1HNMR spectral analysis. Metal ion complexes of, L with Pt, IV, Rh, III, Ru, III and Pd, II ions were prepared and characterized by FT-IR, and UV-Vis spectroscopy, elemental analysis, C.H.N, flame atomic absorption techniques as well as magnetic susceptibility and conductivity measurements. The results showed that metal ion complexes for all complexes were found in [1:2] [M:L] ratio except for Pd, II complex which was found in [1:1] [M:L] ratio. Hyperchem-8 program has been used to predict structural geometries of the, L and it's complexes in gas phase. The electrostatic potential, EP of the, L was calculated. Furthermore, the heat of formation, ∆Hf^o, binding energy, ∆Eb, vibration spectra, electronic spectra and bond length for the ligand, L and its metal ion complexes were calculated by PM3 methods. The antimicrobial activity of, L and its complexes has been extensively studied against pathogenic bacteria such as, Pseudonomous aerugionosa as gram negative and, Bacillus Subtilis as gram positive and fungi, Candida albicans and, Aspergillus flavus by agar-well diffusion technique.

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