Table 7 Evaluated quantum chemical parameters of the ligand, DBAPB, and its metal complexes.

From: New Schiff base ligand and its novel Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II) complexes: spectral investigation, biological applications, and semiconducting properties

Compound/complex

EHOMO (ev)

ELUMO (ev)

∆E (ev)

χ (ev)

μ (ev)

η (ev)

σ (ev)

S (ev)

ω (ev)

Dipole moment (D)

DBAPB

− 6.3601

− 2.9488

3.4112

4.6545

− 4.6545

1.7056

0.5863

0.2931

6.3509

9.65

1

− 6.0173

− 3.2058

2.8115

4.6116

− 4.6116

1.4057

0.7113

0.3556

7.5645

6.49

2

− 5.2480

− 2.7135

2.5345

3.9807

− 3.9807

1.2672

0.7891

0.3945

6.2523

11.29

3

− 6.724

− 3.0953

3.6287

1.6204

− 1.6204

1.8144

1.5302

0.2756

6.6428

14.14

4

− 5.6289

− 2.9557

2.6732

4.2923

− 4.2923

1.3366

0.7482

0.3741

6.8920

3.94

5

− 6.2248

− 3.0115

3.2134

4.6182

− 4.6182

1.6067

0.6223

0.3112

6.6371

11.00

6

− 6.1339

− 3.0909

3.0431

4.6125

− 4.6125

1.5215

0.6572

0.3286

6.9913

7.58