Vibrational and thermal studies of the complexes (NH4)[VO(O2)2(phen)]·2H2O and (NH4)[V(O2)3(phen)]·2H2O

Faculty Science Year: 2005
Type of Publication: ZU Hosted Pages:
Authors:
Soha Fahim Mohamed elsayed
Journal: Spectrochimica Acta Part ِA دولى Volume:
Keywords : Vibrational , thermal studies , , complexes (NH4)[VO(O2)2(phen)]·2H2O , (NH4)[V(O2)3(phen)]·2H2O    
Abstract:
The infrared spectra of the oxodiperoxo and triperoxo complexes, (NH4)[VO(O2)2(phen)]·2H2O and (NH4)[V(O2)3(phen)]·2H2O have been recorded and the observed bands are assigned on the basis of Cs symmetry. Thermogravimetric (TG) and differential thermal analysis (DTA) measurements on these two complexes were also carried out. A detailed mechanism for the mode of thermal decomposition of the two complexes has been given and supported by infrared spectral measurements on the thermal decomposition products. The data obtained agree quite well with the expected structure and indicate that the final thermal decomposition product of these two complexes is V2O5.
    
     
 
       

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