Table 3 Quantum chemical descriptors for H1–H6.

From: Evaluating the antidiabetes and antioxidant activities of halogenated Schiff bases derived from 4-(diethylamino)salicylaldehyde: in vitro antidiabetes, antioxidant and computational investigation

Parameters

H1

H2

H3

H4

H5

H6

Energy (hatrees)

 − 943.85

 − 943.85

 − 1260.92

 − 1260.92

 − 1304.21

 − 1403.44

E-LUMO (eV)

 − 1.31

 − 1.34

 − 1.41

 − 1.47

 − 1.45

 − 1.49

E-HOMO (eV)

 − 5.11

 − 5.07

 − 5.19

 − 5.20

 − 5.20

 − 5.26

ΔE (eV)

3.80

3.73

3.78

3.74

3.75

3.77

IP (eV)

5.12

5.07

5.19

5.21

5.20

5.26

EA (eV)

1.31

1.34

1.41

1.47

1.45

1.49

η (eV)

1.90

1.87

1.89

1.87

1.88

1.89

σ (eV)

0.53

0.54

0.53

0.54

0.53

0.53

Cp (D)

 − 3.21

 − 3.21

 − 3.30

 − 3.34

 − 3.32

 − 3.37

χ (eV)

3.21

3.21

3.30

3.34

3.32

3.37