Research Article
Koopmans' Analysis of Chemical Hardness with Spectral-Like Resolution
Table 2
Molecular structures of paradigmatic aromatic hydrocarbons [66], ordered downwards according with their Hückel first-order HOMO-LUMO gap [69], along their first three highest occupied (HOMOs) and lowest unoccupied (LUMOs) (in electron-volts (eV)) computationally recorded levels within semiempirical AM1 method [68].
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