Fig. 8

B3LYP/6–31G(d, p) computed NLO parameters of glycine, glycine (NH₂)-ZnO-H₂O (Model 1), glycine (COOH)-ZnO-H₂O (Model 2), glycine (NH₂)-MgO-H₂O (Model 3), glycine (COOH)-MgO-H₂O (Model 4), glycine (NH₂)-CaO-H₂O (Model 5), and glycine (COOH)- CaO-H₂O (Model 6).