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Synthesis and Characterization of Cobalt(II), Cerium(III), and Dioxouranium(VI) Complexes of 2,3-Dimethyl-1-phenyl-4-salicylidene-3-pyrazolin-5-one Mixed Ligand Complexes, Pyrolytic Products, and Biological Activities
Abd El-Wahab, Z. H., Mashaly, M. M. and Faheim, A. A. Synthesis and Characterization of Cobalt(II), Cerium(III), and Dioxouranium(VI) Complexes of 2,3-Dimethyl-1-phenyl-4-salicylidene-3-pyrazolin-5-one Mixed Ligand Complexes, Pyrolytic Products, and Biological Activities Chemical Papers, Vol.59, No. 1, 2005, 25-36
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Attached Files |
| Name |
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Size |
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n591a25.pdf
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591a25.pdf |
application/pdf |
222.59KB |
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| Author(s) |
Abd El-Wahab, Z. H.
Mashaly, M. M.
Faheim, A. A.
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| Title |
Synthesis and Characterization of Cobalt(II), Cerium(III), and Dioxouranium(VI) Complexes of 2,3-Dimethyl-1-phenyl-4-salicylidene-3-pyrazolin-5-one Mixed Ligand Complexes, Pyrolytic Products, and Biological Activities
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| Journal name |
Chemical Papers
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| Publication date |
2005
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| Year available |
2005
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| Volume number |
59
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| Issue number |
1
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| ISSN |
0366-6352
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| Start page |
25
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| End page |
36
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2005
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| Language |
english
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| Subject |
250000 Chemical Sciences
250300 Organic Chemistry
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| Abstract/Summary |
New series of Co(II), Ce(III), and UO2(VI) Schiff base complexes were prepared. The reactions of the Schiff base ligand 2,3-dimethyl-1-phenyl-4-salicylidene-3-pyrazolin-5-one (HL) with the above metals in the presence of LiOH as a deprotonating agent yielded different types of mononuclear complexes. Also, the mixed ligand complexes of 2-aminopyridine, 8-hydroxy-quinoline, and oxalic acid were isolated. All the binary and mixed ligand complexes of Co(II) and Ce(III) have octahedral configuration, while the UO2(VI) complexes have distorted dodecahedral geometries. HL is coordinated to the central metal atom as monoanionic tridentate ONO and/or monoanionic tetradentate ONON ligand. Binuclear Ce(III) complex was prepared pyrolytically through the thermal transformation of the mononuclear complex. All the complexes and the corresponding thermal products were isolated and their structures were elucidated by elemental analyses, conductance, IR and electronic absorption spectra, magnetic moments, 1H NMR and TG-DSC measurements. HL and some of its metal complexes show higher antibacterial effects than those of some of the investigated antibiotics.
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