Research Article

Vibrational Spectroscopic Studies of Tenofovir Using Density Functional Theory Method

Table 4

Natural atomic charges of tenofovir.

Atom with numberingMPANPA
B3LYP/
6-311++G(d,p)
B3LYP/
6-31G(d,p)
B3PW91/
6-31G(d,p)
B3LYP/
6-311++G(d,p)
B3LYP/
6-31G(d,p)
B3PW91/
6-31G(d,p)

C1−0.153−0.124−0.190−0.362−0.493−0.511
O2 −0.527−0.508−0.506−0.617−0.599−0.596
C3 −0.059−0.077−0.122−0.184−0.287−0.305
C4 0.1630.1330.0900.0500.0440.035
C5 −0.347−0.333−0.404−0.577−0.703−0.729
N6 −0.539−0.587−0.602−0.516−0.510−0.510
C7 0.2850.2470.2420.2480.2050.198
N8 −0.513−0.479−0.516−0.412−0.393−0.391
C9 0.5120.5110.5420.3830.3690.366
N10 −0.524−0.564−0.596−0.583−0.587−0.586
C11 0.2270.2260.2170.3130.2640.257
N12 −0.521−0.548−0.568−0.558−0.557−0.556
C13 0.4800.5610.5940.4010.4180.412
C14 0.1950.2480.223−0.0020.0070.004
N15 −0.639−0.662−0.709−0.727−0.788−0.796
P16 1.0721.0541.0812.2652.3882.373
O17 −0.556−0.548−0.564−0.979−1.023−1.023
O18 −0.555−0.552−0.567−0.983−1.027−1.027
O19 −0.550−0.549−0.554−1.070−1.092−1.087
H20 0.1370.1290.1560.2040.2380.247
H21 0.1560.0890.1120.1700.1990.207
H22 0.1530.1280.1570.2080.2480.257
H23 0.1230.1280.1550.2080.2440.253
H24 0.1130.2230.2600.2590.2950.301
H25 0.1650.1240.1510.2190.2540.263
H26 0.1160.1040.1300.2040.2390.249
H27 0.1060.0950.1200.1940.2250.234
H28 0.1220.1270.1590.2030.2380.246
H29 0.1000.1090.1410.1790.2250.232
H30 0.2880.3040.3260.4190.4450.452
H31 0.2800.2890.3110.4110.4380.445
H32 0.3530.3490.3620.5140.5370.541
H33 0.3400.3530.3660.5200.5410.545