Jensen-Tsallis divergence and atomic dissimilarity for ionized systems in conjugated spaces

► Study of dissimilarity among neutral and ionized atomic systems. ► Use of Jensen-Tsallis divergence (JTD) among one-particle densities. ► JTD (non-extensive one-parameter divergence) generalizes previous ones. ► Main improvement: JTD able to modify contributions of specific atomic regions. ► Correlation among neutral-cation JTD and ionization potential.