Research Article

Molecular Modeling of Acidic Treated PSTM-3T Polymer for Removal of Heavy Metal Ions by Experimental and Computational Studies

Table 3

The comparison of experimental (in Figure 5) and theoretical (in Figure 3(b)) frequencies of PSTM-3T after treatment by nitric acid (pH = 5) solution. The percentage of relative deviation of model in different frequencies is shown in parenthesis.

GroupsWavenumbers [1/cm] [%]
Exp.Cal.

CS553.57582.38+5.20
665.44692.99+4.14

NH1558.481528.08−1.95
3300.203575.94+8.36

Inter2061.90

CN1633.711528.08−6.47