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. 2022 May 9;8(5):e09373. doi: 10.1016/j.heliyon.2022.e09373

Table 2.

Global reactivity descriptors for copper(II) complexes in eV.

Molecular properties Mathematical description 1 2 3 4
EHOMO Energy of HOMO -7.294 -6.715 -7.140 -6.947
ELUMO Energy of LUMO 6.639 -6.236 -5.176 -6.808
Energy gap ΔEg = EHOMO - ELUMO 0.655 0.479 1.964 0.139
Ionization potential (IP) IP = -EHOMO 7.294 6.715 7.140 6.947
Electron Affinity (EA) EA = -ELUMO 6.939 6.236 5.176 6.808
Electronegativity (χ) (χ) = -½ (EHomo + ELumo) 7.116 6.475 6.158 6.878
Chemical Potential (μ) μ = ½ (EHomo + ELumo) -7.116 -6.475 -6.158 -6.878
Global Hardness (η) = - ½ (EHomo - ELumo) 0.327 0.240 0.982 0.069
Softness (S) (S) = 1/2η 1.526 2.083 0.510 7.194
Electrophilicity index (ω) ω = μ2/2η 77.427 87.345 20.431 340.337