I Vanadium oxide oxidation states binding energy -- unequal spacing

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The binding energy gaps between oxidation states of vanadium oxide are not equally spaced due to differing chemical environments. Each oxidation state, such as V2+ in VO and V5+ in V2O5, experiences unique electronic interactions that affect binding energy. The variations in oxidation states lead to distinct energy levels, which explains the unequal spacing observed in XPS measurements. Understanding these differences is crucial for interpreting the electronic properties of vanadium oxides. The discussion highlights the importance of chemical context in analyzing binding energies.
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How come in XPS the binding energy gaps between oxidation states of vanadium oxide are not equally spaced? Is there a reason they are not all equally spaced?
Hello, How come in XPS the binding energy gaps between oxidation states of vanadium oxide are not equally spaced? Is there a reason they are not all equally spaced? V2+ (VO) 513.0 eV V3+ (V2O3) 515.6 eV V4+ (VO2) 516.0 eV V5+ (V2O5) 517.1 eV Many thanks
 
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Why would you expect them to be equally spaced? They’re in different chemical environments.
 

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