Thermal Stability of Bis-Piperidine Benzoylacetonates of Some Transition Metals |
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Authors: | Din S U Umar M |
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Institution: | (1) Centre for Solid-State Physics, Punjab University, Lahore, 54590, Pakistan |
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Abstract: | Bis-piperidine complexes of benzoylacetonates of Mn(II), Co(II), Cd(II) and Ni(II) were prepared. Thermogravimetric analysis (TG) demonstrated that Mn(II) bis-piperidine benzoylacetonate was stable up to 90°C, while Co(II) bis-piperidine benzoylacetonate was stable up to 100°C, whereas Cd(II) bis-piperidine benzoylacetonate was stable up to only 50°C. Its first decomposition step was completed at 110°C. Ni(II) bis-piperidine benzoylacetonate found to be stable up to 110°C. The stabilities of the complexes of these metals therefore follow the sequence Cd2+<Mn2+<Co2+<Ni2+. The complex of Cd(II) was the least stable of all the compounds studied.This revised version was published online in November 2005 with corrections to the Cover Date. |
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Keywords: | bis-piperidine benzoylacetonate thermal stability transition metals |
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